ZEN Operation Manual Datasheet by Omron Automation and Safety

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ZEN Programmable Relay
Operation Manual
Revised May 2007
This operation manual is for version-2 (-V2) ZEN Programmable Relays only.
For version-1 or pre-version-1 ZEN Programmable Relays, refer to operation
manual with Cat. No. Z183.
Z211-E1-02A.book Page iii Monday, May 21, 2007 12:38 PM
iv
Preface
OMRON products are manufactured for use according to proper procedures by a
qualified operator and only for the purposes described in this manual.
The ZEN is a compact and highly functional controller that can be used to easily
automate small-scale applications. Its development has drawn on OMRON's
advanced control technology and expertise in manufacturing various types of
controllers.
Version 2 of the ZEN includes Economy-type CPU Units and Communications-type
CPU Units. Twin timer operation and operation between days for weekly timers have
been added. Pulse output operation and 8-digit counters with high-speed counting
have also been added, and Expansion I/O Units have been downsized to half the
width.
This manual describes how to use version 2 of the ZEN. Before using the ZEN, read
this manual carefully so that you can use the ZEN correctly. Keep the manual close
at hand so that you can refer to it whenever necessary.
Intended Audience
This manual is intended for the following readers.
Persons in charge of introducing FA devices
Persons who design FA systems
Persons who install or connect FA devices
Persons who manage working FA installations
Persons who use this product must have sufficient knowledge of electrical systems
(i.e., an electrical engineer or the equivalent).
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v
Warranty and Application Considerations
Warranty and Limitations of Liability
Read and Understand this Manual
Please read and understand this manual before using the product. Please consult
your OMRON representative if you have any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials
and workmanship for a period of one year (or other period if specified) from date of
sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR
IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS
FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER
ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED
THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR
CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN
ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS
BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price
of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR
OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS
CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED,
INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION,
ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
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SUITABILITY FOR USE
vi
Application Consideration
SUITABILITY FOR USE
THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED.
THEY ARE NOT DESIGNED OR RATED FOR ENSURING SAFETY OF PERSONS,
AND SHOULD NOT BE RELIED UPON AS A SAFETY COMPONENT OR
PROTECTIVE DEVICE FOR SUCH PURPOSES. Please refer to separate catalogs
for OMRON's safety rated products.
OMRON shall not be responsible for conformity with any standards, codes, or
regulations that apply to the combination of products in the customer’s application or
use of the product.
At the customer’s request, OMRON will provide applicable third party certification
documents identifying ratings and limitations of use that apply to the products. This
information by itself is not sufficient for a complete determination of the suitability of
the products in combination with the end product, machine, system, or other
application or use.
The following are some examples of applications for which particular attention must
be given. This is not intended to be an exhaustive list of all possible uses of the
products, nor is it intended to imply that the uses listed may be suitable for the
products:
• Outdoor use, uses involving potential chemical contamination or electrical
interference, or conditions or uses not described in this document.
• Nuclear energy control systems, combustion systems, railroad systems, aviation
systems, medical equipment, amusement machines, vehicles, safety equipment,
and installations subject to separate industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A
WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE
OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED
USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
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vii
Disclaimers
Copyright and Copy Permission
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on
improvements and other reasons.
It is our practice to change model numbers when published ratings or features are
changed, or when significant construction changes are made. However, some
specifications of the products may be changed without any notice. When in doubt,
special model numbers may be assigned to fix or establish key specifications for your
application on your request. Please consult with your OMRON representative at any
time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing
purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in
determining suitability and does not constitute a warranty. It may represent the result
of OMRON's test conditions, and the users must correlate it to actual application
requirements. Actual performance is subject to the OMRON Warranty and Limitations
of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be
accurate; however, no responsibility is assumed for clerical, typographical, or
proofreading errors, or omissions.
Copyright and Copy Permission
COPYRIGHT AND COPY PERMISSION
This document shall not be copied for sales or promotions without permission.
This document is protected by copyright and is intended solely for use in conjunction
with the product. Please notify us before copying or reproducing this document in any
manner, for any other purpose. If copying or transmitting this document to another,
please copy or transmit it in its entirety.
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viii
OMRON Product References
All OMRON products are capitalized in this manual. The word “Unit” is also
capitalized when it refers to an OMRON product, regardless of whether or not it
appears in the proper name of the product.
Visual Aids
The following headings appear in the left column of the manual to help you locate
different types of information.
Note Indicates information of particular interest for efficient and convenient
operation of the product.
1,2,3... 1. Indicates lists of one sort or anther, such as procedures,
checklists, etc.
Precautions for Correct Use
Precautions for Safe Use
Indicates precautionary information that should be heeded in using
the ZEN.
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ix
About this Manual
This operation manual is for version-2 (-V2) ZEN Programmable Relays only.
For version-1 or pre-version-1 ZEN Programmable Relays, refer to operation
manual with Cat. No. Z183.
When using a CPU Unit with an LED display (without LCD display), refer to the
ZEN Support Software Operation Manual (Cat. No. Z184).
Manual Contents
Section 1 gives an outline of the ZEN, including descriptions of ZEN features
and functions.
Section 2 explains how to mount and wire the ZEN and how to connect
sensors.
Section 3 explains basic settings required to operate the ZEN and setting
methods for internal bits.
Section 4 describes the many convenient functions provided by the ZEN.
Section 5 describes how to use optional products, such as Battery Units and
Memory Cassettes.
Section 6 lists the error messages and provides probable causes and
countermeasures for troubleshooting.
The Appendices provide specifications, technical references, version update
information, allocations and setting sheets, and other information related to
ZEN operation.
Related Manual
Manual Contents Cat. No.
ZEN Support Software
Operation Manual
Describes installation and operating
procedures for the ZEN Support
Software.
Z184-E1-03
Communications
Manual
Describes the communications functions
of the ZEN.
Z212
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x
Visual Aids
The following headings appear in the left column of the manual to help you locate
different types of information.
Note
Indicates information of particular interest for efficient and convenient
operation of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures,
checklists, etc.
Precautions for Correct Use
Indicates precautionary information that should be heeded to ensure
correct use of the ZEN.
Precautions for Safe Use
Indicates precautionary information that should be heeded to ensure
safe use of the ZEN.
Indicate the buttons that needs to be pressed in operating
procedures. Press each button once.
Indicate buttons that needs to be pressed in operating procedures.
Press one of the buttons once or more.
Indicates that the display (the word “LANGUAGE” in this case) is
flashing. In this manual, this state is described by saying that the
“flashing cursor” is at the word “LANGUAGE”. In this state it is
possible to change settings and the position of the cursor.
LANGUAGE Indicates that the display (the letter “H” in this case) is flashing in
reverse video. In this manual, this state is described by saying that
the “highlighted cursor” is at the word “H”. In this state it is not
possible to change settings but the cursor can be changed to the
flashing cursor by pressing the OK button.
RUN
PARAMETER
SET CLOCK
LANGUAGE
ENGLISH
OMRON, 2006
All rights reserved. No part of this publication may be reproduced, stored in a retrieval
system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying,
recording, or otherwise, without the prior written permission of OMRON.
No patent liability is assumed with respect to the use of the information contained herein.
Moreover, because OMRON is constantly striving to improve its high-quality products, the
information contained in this manual is subject to change without notice. Every precaution
has been taken in the preparation of this manual. Nevertheless, OMRON assumes no
responsibility for errors or omissions. Neither is any liability assumed for damages resulting
from the use of the information contained in this publication.
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xi
TABLE OF CONTENTS
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Warranty and Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
OMRON Product References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Visual Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
About this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Visual Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Precautions for Safe Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Precautions for Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
SECTION 1
Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Features and Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-3 Nomenclature and Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1-4 Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1-5 Allocating I/O Bit Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1-6 Preparations for Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SECTION 2
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2-1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2-2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SECTION 3
Programming and Operating Methods . . . . . . . . . . . . . . . . . . 55
3-1 Selecting Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3-2 Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3-3 Creating Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-4 Confirming Ladder Program Operation. . . . . . . . . . . . . . . . . . . . . . . . . . 69
3-5 Correcting Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3-6 Using Timers (T) and Holding Timers (#). . . . . . . . . . . . . . . . . . . . . . . . 74
3-7 Using Counters (C) and the 8-Digit Counter (F) . . . . . . . . . . . . . . . . . . . 78
3-8 Using Weekly Timers (@) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
3-9 Using Calendar Timers (*). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
3-10 Analog Inputs (Analog Comparators (A)) . . . . . . . . . . . . . . . . . . . . . . . . 87
3-11 Comparing Timer/Counter Present Values Using Comparators (P) . . . . 91
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TABLE OF CONTENTS
3-12 Comparing the 8-Digit Counter (F) Present Value Using 8-Digit
Comparators (G). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
3-13 Displaying Messages (Display Bits (D)) . . . . . . . . . . . . . . . . . . . . . . . . . 96
3-14 Using Button Input Bits (B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
SECTION 4
Special Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
4-1 Protecting Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
4-2 Stabilizing Input Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
4-3 Changing Backlight Automatic Cutout Time. . . . . . . . . . . . . . . . . . . . . . 106
4-4 Setting Daylight Saving Time (DST). . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
4-5 Reading System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
SECTION 5
Optional Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
5-1 Mounting Battery Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
5-2 Using Memory Cassettes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5-3 Connecting the ZEN Support Software . . . . . . . . . . . . . . . . . . . . . . . . . . 114
SECTION 6
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
6-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
6-2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
6-3 Deleting Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Appendices
A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
B Ladder Program Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
C Operating Mode at Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
D Version Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
E Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
F Allocations and Setting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
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Precautions
This section provides precautions for using the ZEN Programmable Relays.
This information contained in this section is important for the safe and reliable
application of the ZEN. You must read this section and understand the information
before attempting to set up for a ZEN.
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
Precautions for Safe Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Precautions for Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
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In
xiv
Precautions
Definition of Precautionary Information
The following notation is used in this manual to provide precautions required to
ensure safe usage of the product.
The safety precautions that are provided are extremely important to safety. Always
read and heed the information provided in all safety precautions.
The following notation is used.
Symbols
Safety Precautions
WARNING
Indicates a potentially hazardous situation which, if not avoided,
will result in minor or moderate injury, or may result in serious
injury or death. Additionally, there may be significant property
damage.
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury or in property damage.
Symbol Meaning
Caution
General Caution
Indicates non-specific general cautions, warnings, and
dangers.
Electrical Shock Caution
Indicates possibility of electric shock under specific
conditions.
Explosion Caution
Indicates possibility of explosion under specific
conditions.
Prohibition
Disassembly Prohibition
Indicates prohibitions when there is a possibility of injury,
such as from electric shock, as the result of
disassembly.
Mandatory
Caution
General Caution
Indicates non-specific general cautions, warnings, and
dangers.
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xv
Precautions
Precautions
WARNING
Serious human hazard may occasionally occur due to ignition or rupture of
the lithium battery used in the Battery Unit. Do not short the battery
terminals or charge, disassemble, deform under pressure, or incinerate
the battery.
Never use any battery that has been dropped on the floor or otherwise
subjected to excessive shock.
CAUTION
Electric shock, fire, or malfunction may occur. Do not disassemble, modify,
or repair the ZEN or touch any of the internal parts.
Electrical shock may occur. Never touch the I/O terminals, computer
connector, Expansion Unit connector, or Battery Unit connector while
power is being supplied.
Electrical shock may occur. Do not remove the Expansion Unit connector
cover unless an Expansion I/O Unit will be permanently installed.
Fires may occasionally occur. Tighten the terminal screws to a torque of
0.565 to 0.6 N·m (5 to 5.3 in-lb).
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xvi
Precautions
Please observe the following precautions for safe use of this products.
Circuit Design
1. All interface connectors and battery connector are live parts, they may not be
directly connected to Softy Extra Low Voltage (SELV) circuit or to accessible
conductive parts.
For the programming units and Personal Computers use only the ZEN-CIF01
Connecting Cable (optional accessory) manufactured by OMRON.
ZEN-CIF01 provides safe (reinforced) insulation between Personal Computers
and ZEN.
2. Provide emergency stop circuits, external interlock circuits, limit circuits, and
other safety circuits in addition to any provided within the ZEN control circuits to
ensure safety of the overall system in the event of ZEN failure or external factors.
3. If the ZEN discovers an error during self-diagnosis, operation will be stopped and
all outputs will be turned OFF. As a countermeasure for such problems, external
safety measures must be provided to ensure safety in the overall system.
4. Outputs from the ZEN may remain ON or OFF due to faults in internal circuits
such as output relay fusing or burning, or output transistor destruction. As a
countermeasure for such problems, external safety measures must be provided
to ensure safety in the overall system.
5. Fail-safe measures must be taken by the user to ensure overall system safety in
the event of broken signal lines or momentary power interruptions.
6. The durability of the output relays is largely affected by the switching conditions.
Confirm the operation of the system under actual operating conditions and set
the switching frequency to ensure that adequate performance will be provided.
Insulation faults and burning in the ZEN may result if relays are used after their
performance has deteriorated.
Connecting Expansion I/O Units
1. Supply power to both the CPU Unit and Expansion I/O Units from the same
power supply and turn them ON and OFF at the same time.
2. When connecting Expansion I/O Units with DC inputs to a CPU Unit with an AC
power supply, the burst noise immunity will be 1 kV (IEC 61000-4-4).
3. Expansion I/O Units with AC inputs (ZEN-8E1AR) cannot be connected to a CPU
Unit with a DC power supply.
System Startup and Program Changes
1. Check the user program for proper execution before actually running it on the
Unit.
2. Disconnect the output lines from the system before testing operation in any
system in which incorrect operation can result in injury or equipment damage.
3. Confirm safety before attempting any of the following operations.
Changing the operating mode (RUN/STOP).
Precautions for Safe Use
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xvii
Precautions
Using the button switches.
Changing bit status or parameter settings.
4. Double-check all wiring before turning ON the power supply.
5. Refer to Cycle Time Calculation Method on page 130 and confirm that the
increase in the cycle time will not affect operation. If the cycle time is too long, it
may become impossible to read input signals accurately. The increase in the
cycle time will be particularly noticeable when set values are written in RUN mode
for a CPU Unit with communications (ZEN-10C4@R-@-V2).
Installation and Wiring
1. Do not allow the ZEN to fall during installation.
2. Be sure that the DIN Track mounting levers, Expansion I/O Units, Memory
Cassettes, Battery Units, cable connectors, and other items with locking devices
are properly locked into place. Improper locking may result in malfunction.
3. When mounting the ZEN to the surface of the control panel, tighten mounting
screws to the following torques.
CPU Units: 1.03 Nm max.
Expansion I/O Units: 0.46 Nm max.
4. Use wires with cross-sectional areas of 0.2 to 2.5 mm2 (equivalent to AWG24 to
AWG14) for wiring and strip them for 6.5 mm.
Handling
1. The environment of use of ZEN is "Pollution degree 2" and "Overvoltage category
II" specified in IEC60664-1.
2. Always use the ZEN within the rated ambient operating temperature and
humidity. The rated ambient operating temperature is 0 to 55°C for LCD-type
CPU Units and –25 to 55°C for LED-type CPU Units. If the ZEN is used near
sources of heat, such as a power supply, the internal temperature of the ZEN may
increase, lowering the durability of the ZEN.
3. Discharge static electricity from your body, e.g., by touching a grounded metal
plate, before touching any Unit.
4. The exterior of the Units will be damaged if it comes into contact with organic
solvents (e.g., benzene or paint thinner), strong alkalies, or strong acids. Never
allow such substances to come into contact with the Units.
5. Do not apply voltages exceeding the rated voltages. Internal elements may be
destroyed.
6. Short failures or open failures may result from the destruction of output elements.
Do not use loads that exceed the rated output current.
Maintenance
When replacing a CPU Unit, transfer to the new Unit and confirm all settings for clock
data, internal holding bits, holding timers, and counters before starting operation
again.
Transportation and Storage
1. Use special packaging boxes when transporting the ZEN and do not subject it to
excessive shock or vibration or drop it during shipment.
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xviii
Precautions
2. Store the ZEN at an ambient temperature of 40 to 75°C for LED-type CPU Units
and 20 to 75°C for all other types of CPU Units. If the ZEN has been stored at
10°C or lower, allow it to stand at room temperature for 3 hours or longer before
turning ON the power supply.
Z211-E1-02A.book Page xviii Monday, May 21, 2007 12:38 PM
xix
Precautions
Installation Environment
1. Do not install the ZEN in the following locations.
Locations subject to radical changes in temperature
Location with high humidity subject to condensation
Locations subject to excessive dust or dirt
Locations subject to corrosive gas
Locations subject to direct sunlight
2. Do not install the ZEN in locations subject to shock or vibration. Extended use in
such location may cause damage from stress.
3. In environments subject to static electricity (e.g., close to pipes conveying
forming materials, powders, or fluid materials), separate the ZEN as far as
possible from the source of static electricity.
4. The ZEN is neither waterproof nor oil-proof. Do not use it in locations subject to
water or oil.
5. Use the ZEN within the allowable power supply voltage range. Be particularly
careful in locations with bad power supply conditions, e.g., large fluctuations in
the power supply voltage.
6. Do not install the ZEN in locations subject to excessive noise, which may cause
the ZEN to fail.
7. Take appropriate and sufficient countermeasures when installing systems in the
following locations:
Locations subject to strong electromagnetic fields
Locations subject to possible exposure to radioactivity
Power Supply
1. Always turn OFF the power supply to the ZEN (CPU Unit and Expansion I/O
Units) before attempting any of the following.
Assembling the ZEN
Attaching or removing Expansion I/O Units
Connecting or disconnecting any cables or wiring
Attaching or removing the Memory Cassette
Attaching or removing the Battery Unit
2. If the power supply is interrupted for 2 days or more (at 25°C), the internal
capacitor will discharge and internal bit status and the contents of PV areas will
be lost or corrupted and dates and times will be reset. When restarting operation
after the power supply has been interrupted for an extended period of time, check
the system in advance to confirm that no errors will occur.
Handling
1. Connect connectors only after confirming that the direction or polarity is correct.
2. Failures could result if dust or dirt enters the ZEN. Always connect the connector
cover to the computer connector whenever it is not being used.
Precautions for Correct Use
Z211-E1-02A.book Page xix Monday, May 21, 2007 12:38 PM
ES )QEMEEEH
xx
Precautions
3. Do not remove the label from the left side of the CPU Unit if a Battery Unit is not
mounted.
Other
1. The execution of the ladder program in the ZEN is different from that for other
PLCs. Refer to Appendix B Ladder Program Execution when writing the ladder
program.
2. Abide by all local ordinances and regulations when disposing of the ZEN.
3. The Battery Unit (ZEN-BAT01, sold separately) contains a lithium battery.
Observe all applicable legal requirements for your area when disposing of the
lithium battery.
Z211-E1-02A.book Page xx Monday, May 21, 2007 12:38 PM
EMC Directives Low Voltage 'rect' e
xxi
Precautions
Conformance to EC Directives
Applicable Directives
•EMC Directives
Low Voltage Directive
Concepts
EMC Directives
OMRON devices that comply with EC Directives also conform to the related EMC
standards so that they can be more easily built into other devices or the overall machine.
The actual products have been checked for conformity to EMC standards. The ZEN
complies with IEC/EN61131-2 clause 8. Whether the products conform to the standards
in the system used by the customer, however, must be checked by the customer.
EMC-related performance of the OMRON devices that comply with EC Directives will
vary depending on the configuration, wiring, and other conditions of the equipment or
control panel on which the OMRON devices are installed. The customer must, therefore,
perform the final check to confirm that devices and the overall machine conform to EMC
standards.
Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 VAC and 75 to 1,500
VDC meet the required safety standards. The ZEN complies with IEC/EN61131-2 clause
11 except for 11.7.2.2.
Conformance to EC Directives
The ZEN complies with EC Directives. To ensure that the machine or device in which the
ZEN is used complies with EC Directives, the ZEN must be installed as follows:
1. The ZEN is an open-structure device. To meet the requirements of IEC/EN 61131-2
for open-structure devices, the ZEN must be mounted inside a control panel and
protected from mechanical impact as described on page 36.
2. Do not exceed a cable length of 10 m when connecting transistor outputs.
3. Burst immunity will no longer meet IEC/EN 61131-2 requirements if an Expansion I/O
Unit with DC inputs is connected to a CPU Unit with an AC power supply.
4. ZEN models complying with EC Directives also conform to the Common Emission
Standard (IEC/EN61131-2 clause 8). Radiated emission characteristics (10-m
regulations) may vary depending on the configuration of the control panel used, other
devices connected to the control panel, wiring, and other conditions. You must
therefore confirm that the overall machine or equipment complies with EC Directives.
Z211-E1-02A.book Page xxi Monday, May 21, 2007 12:38 PM
Countermeasures Countermeasure Exam les
xxii
Precautions
Relay Output Noise Reduction Methods
The ZEN conforms to EN 61131-2 of the EMC Directives. However, noise generated by
relay output switching may not satisfy these Standards. In such a case, a noise filter
must be connected to the load side or other appropriate countermeasures must be
provided external to the ZEN.
Countermeasures taken to satisfy the standards vary depending on the devices on the
load side, wiring, configuration of machines, etc. Following are examples of
countermeasures for reducing the generated noise.
Countermeasures
(Refer to EN61131-2 for more details.)
Countermeasures are not required if the frequency of load switching for the whole
system with the ZEN included is less than 5 times per minute.
Countermeasures are required if the frequency of load switching for the whole
system with the ZEN included is 5 times per minute or higher.
Countermeasure Examples
When switching an inductive load, connect an surge protector, diodes,
etc., in parallel with the load or contact as shown below.
Circuit Current Characteristic Required element
AC DC
CR method Yes Yes If the load is a relay or
solenoid, there is a time
lag between the moment
the circuit is opened and
the moment the load is
reset.
If the supply voltage is 12
to 48 V, insert the surge
protector in parallel with
the load. If the supply
voltage is 100 to 200 V,
insert the surge protector
between the contacts.
The capacitance of the
capacitor must be 1 to 0.5 µF
per contact current of 1 A and
resistance of the resistor must
be 0.5 to 1 per contact
voltage of 1 V. These values,
however, vary with the load
and the characteristics of the
relay. Decide these values
from experiments, and take
into consideration that the
capacitance suppresses spark
discharge when the contacts
are separated and the
resistance limits the current
that flows into the load when
the circuit is closed again.
The dielectric strength of the
capacitor must be 200 to
300 V. If the circuit is an AC
circuit, use a capacitor with no
polarity.
Power
supply
Inductive
load
C
R
Z211-E1-02A.book Page xxii Monday, May 21, 2007 12:38 PM
ff: L E
xxiii
Precautions
Diode method No Yes The diode connected in
parallel with the load
changes energy
accumulated by the coil
into a current, which then
flows into the coil so that
the current will be
converted into Joule heat
by the resistance of the
inductive load.
This time lag, between
the moment the circuit is
opened and the moment
the load is reset, caused
by this method is longer
than that caused by the
CR method.
The reversed dielectric
strength value of the diode
must be at least 10 times as
large as the circuit voltage
value. The forward current of
the diode must be the same as
or larger than the load current.
The reversed dielectric
strength value of the diode
may be two to three times
larger than the supply voltage
if the surge protector is
applied to electronic circuits
with low circuit voltages.
Varistor method Yes Yes The varistor method
prevents the imposition of
high voltage between the
contacts by using the
constant voltage
characteristic of the
varistor. There is time lag
between the moment the
circuit is opened and the
moment the load is reset.
If the supply voltage is 12
to 48 V, insert the varistor
in parallel with the load. If
the supply voltage is 100
to 200 V, insert the
varistor between the
contacts.
---
Circuit Current Characteristic Required element
AC DC
Power
supply
Inductive
load
Power
supply
Inductive
load
Z211-E1-02A.book Page xxiii Monday, May 21, 2007 12:38 PM
xxiv
Precautions
Z211-E1-02A.book Page xxiv Monday, May 21, 2007 12:38 PM
1
SECTION 1
Outline
This section gives an outline of the ZEN, including example applications, the system
configurations and basic operations.
1-1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Features and Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-2-1 Features and System Configuration . . . . . . . . . . . . . . . . . . . . . . . . 8
1-2-2 List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1-3 Nomenclature and Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1-3-1 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1-3-2 Screen Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1-3-3 Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1-4 Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1-5 Allocating I/O Bit Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1-6 Preparations for Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Z211-E1-02A.book Page 1 Monday, May 21, 2007 12:38 PM
Economical Small-scale Automatic Control EDD 3 BED EDD EDD Easy Operation with an Inexpensive Controller N Na #770777” [ 92 0770”,” [ H2 009- Smaller Control Panels Less Assemblv and Wirinq Time Required for Control Panels
2
Outline Section 1-1
1-1 Outline
Economical, Small-scale Automatic Control
One CPU Unit provides 12 inputs and 8 outputs (with CPU Unit with
20 I/O points).
Easy Operation with an Inexpensive Controller
Ladder programming is possible directly from CPU Unit. When using
LED-type CPU Units (without LCD display) with Memory Cassettes
(optional), ladder programs can be easily copied.
Smaller Control Panels
The ZEN is very small at 90 x 70 x 56 mm (H x W x D) and mounts
essentially anywhere.
Note Dimensions are 90 x 122.5 x 56 mm (H x W x D) for CPU Units
with 20 I/O points.
Less Assembly and Wiring Time Required for Control Panels
Simple one-touch DIN Track mounting. Built-in timers and counters
so only power supply and I/O circuit wiring required.
Solid wires can be easily connected using only a screwdriver.
Water-supply facilities in apartments,
lighting control in offices.
70 mm
90 mm
Z211-E1-02A.book Page 2 Monday, May 21, 2007 12:38 PM
Power Failure Countermeasures
3
Outline Section 1-1
Refer to page 38.
Future System Expandability
I/O capacity can be expanded to up to 24 inputs and 20 outputs by
connecting 3 Expansion I/O Units.
Refer to page 9 and 37.
Power Failure Countermeasures
EEPROM backs up the program and system settings data when no
power is supplied to the ZEN.
Use a Battery Unit (optional) to back up work bits, holding timers,
counters, and date/time data.
Refer to page 110.
Easy Saving and Copying of Programs
Use an optional Memory Cassette to easily save and copy programs.
Refer to page 111.
Q
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20C1AR-A-V2
CPU Unit Expansion I/O Units (up to 3)
12 inputs/8 outputs + (4 inputs/4 outputs) × 3
Battery
Unit
Ladder program
data/settings.
Memory Cassette
Z211-E1-02A.book Page 3 Monday, May 21, 2007 12:38 PM
Programming and Monitoring from a Personal Computer /\ \PJ Greater Switchin Ca acit AC Inputs IfL Oinoo cocoons ioooooo i Easy Program Design WHO—l
4
Outline Section 1-1
Programming and Monitoring from a Personal Computer
Windows-based ZEN Support Software is available and provides a
complete simulation function.
Refer to page 114.
Greater Switching Capacity
The output contacts have 8-A switching capacity (250 VAC). All
contacts are independent (for CPU Units with 10 I/O points).
Refer to page 51.
AC Inputs
For CPU Units with AC power supply inputs, 100 to 240 VAC can be
directly connected.
Refer to page 41.
Easy Program Design
There are 3 different operations that can be set for bit outputs. Self-
holding bits also can be easily programmed.
Refer to page 65.
ZEN Support
Software
(CD-ROM)
8 A max.
MC
250 V
LN IN0 IN1 IN2 IN3
L N NC I0 I1 I2 I3 I4 I5
Circuit protector
100 to 240 VAC
LN
Ry
Normal operation
Set/reset operation
Alternate operation
Z211-E1-02A.book Page 4 Monday, May 21, 2007 12:38 PM
Complicated Timers without Additional Programming we; ‘1 Incremental and Decremenlal Counters Season- or Ba -de endenlO eralin Times
5
Outline Section 1-1
Complicated Timers without Additional Programming
Any of the 16 timers support 5 types of operation and 3 timing
ranges.
There are also 8 built-in holding timers that hold data during power
interruptions.
Refer to page 74.
Incremental and Decremental Counters
There are 16 built-in counters that can be switched between
incrementing and decrementing.
Use Comparators to enable programming multiple outputs from a
counter.
Counters: Refer to page 78.
Comparators: Refer to page 91.
Season- or Day-dependent Operating Times
CPU Units with built-in calendar and clock functions have 16 weekly
timers and 16 calendar timers. Seasonal control is possible using
calendar timers and day/time control is possible with weekly timers.
Weekly timers: Refer to page 81.
Calendar timers: Refer to page 86.
TIM
ON delay
OFF delay
One-shot pulse
Flashing pulse
Twin timer
0.01 to 99.99 s
1 s to 99 min 59 s
1 min to 99 h 59 min
C
D
R
CNT
Control number of cars entering
and leaving a car park.
MO FR
SA SU
For gardens, parks, and
recreational ponds.
Z211-E1-02A.book Page 5 Monday, May 21, 2007 12:38 PM
Dlrect Analog Inputs Easier Maintenance 12/2 11:25 am EMFTV‘ Longer Backlight for Dark Situations
6
Outline Section 1-1
Direct Analog Inputs
CPU Units with DC power supply inputs have 2 analog input points (0
to 10 V) and 4 analog comparators.
Refer to page 87.
Easier Maintenance
Use the display function in CPU Units to display user-specified
messages, the date, time, or other data. Button switches can also be
used as input contacts. Applications include usage as a simple
display operation panel.
Refer to page 96.
Longer Backlight for Dark Situations
The automatic cutout time for the backlight for CPU Units can be set
to 2, 10, or 30 minutes, or set to operate continuously. With the
display function, the backlight can also be set to turn ON when a
message is displayed.
Refer to page 106.
Temperature control for hot
houses and tanks. Prevent
freezing of swimming pools.
Z211-E1-02A.book Page 6 Monday, May 21, 2007 12:38 PM
Prevent chattering and Noise-related Malfunctions 4‘, 4|: Exporting Systems Overseas Programming Security
7
Outline Section 1-1
Prevent Chattering and Noise-related Malfunctions
Set the input filters to extend the filter timer and prevent malfunctions.
Refer to page 104.
Exporting Systems Overseas
Display for CPU Units is available in 6 languages. A Daylight Saving
Time (DST) function also supported.
Changing display language: Refer to page 57.
Daylight Saving Time (DST) settings: Refer to page 107.
Programming Security
Programs can be protected by setting a password.
Refer to page 102.
Filter timer
ON
ENGLISH
JAPANESE
GERMAN
FRENCH
ITALIAN
SPANISH
3 9 5 4
PASSWORD
0000
RUN
Z211-E1-02A.book Page 7 Monday, May 21, 2007 12:38 PM
Standard LCD-type Economy-type, and Communications-type CPU Units Common Features
8
Features and Models Section 1-2
1-2 Features and Models
1-2-1 Features and System Configuration
The ZEN is small but has a wide range of functions and is easy to
use. The ZEN facilitates small-scale automatic control.
Standard LCD-type, Economy-type, and Communications-type
CPU Units
Simple button-operated programming.
Highly visible, backlit LCD.
Adjustable automatic cutout time for the backlight.
Six-language display.
Display function for user-specified messages (4 lines x 12
characters), time, or timer, counter, or analog-converted value
displays.
Button switches allowing operation buttons to be used as input
contacts.
Built-in weekly and calendar timers to allow simple seasonal,
daily, or time-based operation.
Remote monitoring via RS-485 communications
(Communications-type CPU Units).
Common Features
Both 100 to 240-VAC and 12 to 24-VDC power supply models
available.
Built-in analog comparator for temperature control and other
analog applications (provided on CPU Units with DC power
supply inputs, two analog inputs 0 to 10 V).
Input filter settings to prevent noise-related malfunctions for both
CPU Units and Expansion I/O Units.
Program and settings data backed up on built-in EEPROM.
Programming using ladder diagrams.
Password function to protect programs.
Connect up to 3 Expansion I/O Units for a maximum of 24 inputs
and 20 outputs.
Z211-E1-02A.book Page 8 Monday, May 21, 2007 12:38 PM
9
Features and Models Section 1-2
CPU Unit
ZEN-BAT01
Battery Unit
Expansion I/O Units (up to 3 can be connected)
Programs can be
saved and copied
by using a
Memory Cassette
(optional).
Personal computer
connecting cable
ZEN-SOFT01-V4
ZEN Support
Software
Programs can be created, edited, saved, and printed,
and operation can be simulated using the ZEN
Support Software (optional).
ZEN-ME01
Memory
Cassette
Work bits, holding
timer data, counter
data, and
date/time data will
be backed up
during long-term
power supply
interruptions if a
Battery Unit
(optional) is
mounted.
Z211-E1-02A.book Page 9 Monday, May 21, 2007 12:38 PM
CPU Units with 10 IIO Points
10
Features and Models Section 1-2
1-2-2 List of Models
CPU Units with 10 I/O Points
Note Refer to Input Specifications on page 123 for input specifications.
Shape Power
supply/
input
voltage
Inputs Outputs Analog
inputs
Model number
With display
and
operation
buttons
Standard
LCD type
100 to
240 VAC,
50/60 Hz
6
inputs
Relays 4
outputs
No ZEN-10C1AR-A-V2
12 to 24 VDC Yes ZEN-10C1DR-D-V2
12 to 24 VDC Transis-
tors
Yes ZEN-10C1DT-D-V2
Economy
type
(Expansion
I/O Units
cannot be
connected)
100 to
240 VAC,
50/60 Hz
Relays No ZEN-10C3AR-A-V2
12 to 24 VDC Yes ZEN-10C3DR-D-V2
Communi-
cations type
100 to
240 VAC,
50/60 Hz
3
outputs
No ZEN-10C4AR-A-V2
12 to 24 VDC Yes ZEN-10C4DR-D-V2
LED type
Without display
100 to
240 VAC,
50/60 Hz
4
outputs
No ZEN-10C2AR-A-V2
12 to 24 VDC Yes ZEN-10C2DR-D-V2
12 to 24 VDC Transis-
tors
Yes ZEN-10C2DT-D-V2
Z211-E1-02A.book Page 10 Monday, May 21, 2007 12:38 PM
CPU Units with 20 IIO Points
11
Features and Models Section 1-2
CPU Units with 20 I/O Points
Note Refer to Input Specifications on page 123 for input specifications.
Shape Power
supply
Inputs Outputs Analog
inputs
Model number
With display
and operation
buttons
Standard
LCD type
100 to
240 VAC,
50/60 Hz
12
inputs
Relays 8
outputs
No ZEN-20C1AR-A-V2
12 to
24 VDC
Yes ZEN-20C1DR-D-V2
12 to
24 VDC
Tran-
sistors
Yes ZEN-20C1DT-D-V2
Economy
type
(Expansion
I/O Units
cannot be
connected)
100 to
240 VAC,
50/60 Hz
Relays No ZEN-20C3AR-A-V2
12 to
24 VDC
Yes ZEN-20C3DR-D-V2
LED type
Without display
100 to
240 VAC,
50/60 Hz
No ZEN-20C2AR-A-V2
12 to
24 VDC
Yes ZEN-20C2DR-D-V2
12 to
24 VDC
Tran-
sistors
Yes ZEN-20C2DT-D-V2
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20C1AR-A-V2
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Z211-E1-02A.book Page 11 Monday, May 21, 2007 12:38 PM
Differences between LCD- and LED-type CPU Units
12
Features and Models Section 1-2
Differences between LCD- and LED-type CPU Units
Note 1. Standard LCD-type, Economy-type, and Communications-type
CPU Units: All models except ZEN-@C2@@-@-V2
2. LED-type CPU Units: ZEN-@C2@@-@-V2
3. Operations using ZEN Support Software are also possible.
Item LCD-type CPU Units
(See note 1.)
LED-type CPU Units
(See note 2.)
AC power
supply
DC power
supply
AC power
supply
DC power
supply
Program editing, parameter settings,
operation monitoring
Yes (Also possible with ZEN
Support Software.)
ZEN Support Software
required.
Operating mode switching Yes (Also possible with ZEN
Support Software)
ZEN Support Software
required.
Calendar and clock function Yes No
Bits Input, output, work,
holding bits
Ye s Ye s
Timer, holding timer,
counter
Ye s Ye s
High-speed counting with
8-digit counter
No Yes No Yes
Weekly timer, calendar
timer
Ye s N o
Analog comparator No Yes No Yes
Timer/counter comparator Yes Yes
Button switches Yes No
Display function Yes No
Settings Display language Yes (Also possible with ZEN
Support Software.)
-
Backlight cutout time Yes (Also possible with ZEN
Support Software.)
-
Input filters Yes (Also possible with ZEN
Support Software.)
ZEN Support Software
required.
Password Yes (Also possible with ZEN
Support Software.)
ZEN Support Software
required.
Memory
Cassette
functions
ZEN to Memory Cassette
transfer
Ye s N o
Memory Cassette to ZEN
transfer
Yes Yes (Automatic transfer
when power is turned ON.)
Memory Cassette
initialization
Ye s N o
Battery Unit connection Yes Yes
ZEN Support Software connection Yes Yes
Z211-E1-02A.book Page 12 Monday, May 21, 2007 12:38 PM
Expansion IIO Units Power Supgly Unit Programming Device 9%
13
Features and Models Section 1-2
Expansion I/O Units
Note 1. The ZEN-8E1AR cannot be connected to a CPU Unit with DC
power supply.
2. Refer to Input Specifications on page 123 for input specifications.
Power Supply Unit
Programming Device
No. of I/O
points
Inputs Outputs Connectable CPU
Units
Model
number
8 I/O 100 to
240 VAC,
50/60 Hz
4 inputs Relays 4
outputs
ZEN-@C1AR-A-V2
ZEN-@C2AR-A-V2
ZEN-10C4AR-A-V2
ZEN-8E1AR
(See note
1.)
12 to
24 VDC
4 inputs Relays 4
outputs
ZEN-@C1@@-@-V2
ZEN-@C2@@-@-V2
ZEN-10C4AR-A-V2
ZEN-8E1DR
12 to
24 VDC
4 inputs Tran-
sistors
4
outputs
ZEN-8E1DT
Name and appearance Specifications Model number
Switching Power supply
Unit
Input voltage: 100 to 240 VAC
Output voltage: 24 VDC
Output capacity: 1.3 A
Capacity: 30 W
ZEN-PA03024
Name and appearance Functions Model number
ZEN Support Software Runs on Windows 95, 98, ME, 2000, XP, or
NT4.0 Service Pack 3 (CD-ROM)
Used for offline programming, all parameter
settings, program transfers, and printing.
ZEN-SOFT01-V4
Personal Computer
Connecting Cable
Connects the computer and ZEN when the ZEN
Support Software is used.
(Cable length: 2 m)
ZEN-CIF01
Z211-E1-02A.book Page 13 Monday, May 21, 2007 12:38 PM
Optional Products
14
Features and Models Section 1-2
Optional Products
Name and
appearance
Functions Model number
Memory Cassette EEP-ROM
Used to save and copy programs.
ZEN-ME01
Battery Unit Uses a battery to back up programs and data.
Mount a Battery Unit if the loss of calendar, clock,
holding bit, holding timer, and counter present values
will cause problems in systems with long power
interruptions. (Battery life: 10 years minimum)
ZEN-BAT01
Training Kit This kit is recommended for first-
time users. Contains the
following products and manuals
as a kit.
CPU Unit
ZEN-SOFT01-V4 ZEN Support
Software
ZEN-CIF01 Personal Computer
Connecting Cable
ZEN Operation Manual (Z211)
ZEN Support Software Operation
Manual (Z184)
ZEN-10C1AR-A-V2
CPU Unit
(AC power supply)
ZEN-KIT01-EV4
ZEN-10C1DR-D-V2
CPU Unit
(DC power supply)
ZEN-KIT02-EV4
Z211-E1-02A.book Page 14 Monday, May 21, 2007 12:38 PM
Standard LCD- e Econom -t e and Communications- CPU Units 0 a. 50$§§3o w F 93‘ 0 $3 25610.33“ Essence h: gm m El 93 1? £9 29 199 292. o
15
Nomenclature and Basic Operation Section 1-3
1-3 Nomenclature and Basic Operation
1-3-1 Nomenclature
Standard LCD-type, Economy-type, and Communications-type
CPU Units
Models with 10 I/O Points
Note Economy-type CPU Units do not have an Expansion Unit
connector. Do not remove the Expansion Unit connector cover on
these CPU Units.
Models with 20 I/O Points
Note Economy-type CPU Units do not have an Expansion Unit
connector. Do not remove the Expansion Unit connector cover on
these CPU Units.
Left Side
Battery Unit connector
(Remove the seal to
connect the Battery Unit.)
Front
Power supply
terminals Input terminals
LCD Operation
buttons
Output terminals
ZEN Support Software connector
(also used for Memory Cassette.)
Right Side
Expansion Unit
connector cover.
(See note.)
Remove this cover to
connect Expansion Unit.
ZEN Support Software connector
(also used for Memory Cassette.)
Q
4
I
6
I
7
I
8
I
9
I
a
I
b
Q
6
Q
5
Q
7
20C1AR-A-V2
Left Side
Battery Unit connector
(Remove the seal when
connecting the Battery Unit.)
Front
Power supply
terminals Input terminals
LCD Operation
buttons
Output terminals
Right Side
Expansion Unit
connector cover.
ZEN Support Software connector
(also used for Memory Cassette.) Remove this cover to
connect Expansion Unit.
Z211-E1-02A.book Page 15 Monday, May 21, 2007 12:38 PM
/4‘ \HH /“ DELflgulALT7 ~ ‘ ESC 0 OK MM“? WNW‘O “~ HHHH‘ HHHH m
16
Nomenclature and Basic Operation Section 1-3
Display Screen and Operation Button
Icon Meanings
LCD ALT ButtonDEL Button
Cursor
Buttons
ESC Button OK Button
RUN ERR
Icon Meaning
RUN Displayed while in RUN mode.
ERR Indicates an error.
Displayed when there is a higher-level menu or ladder
program line than the one currently displayed.
Displayed when there is a lower-level menu or ladder
program line than the one currently displayed.
Displayed when a password has been set.
Z211-E1-02A.book Page 16 Monday, May 21, 2007 12:38 PM
17
Nomenclature and Basic Operation Section 1-3
Operation Button Names and Operations
Button Function
Menus Writing ladder program Setting parameters Button switch
(See page 99.)
DEL
--- Deletes inputs, outputs,
connection lines, and blank
lines.
--- B6 ON
ALT
--- Switches between normally
open and normally closed
conditions.
Changes to connection line
write mode.
Inserts a line.
--- B7 ON
Up
Moves the
cursor up and
down.
Moves the cursor up and
down.
Selects bit types and
functions.
Moves the cursor up
and down.
Changes numerals
and parameters.
B5 ON
Down
B2 ON
Left
--- Moves the cursor right and
left.
Moves the cursor
right and left.
B3 ON
Right
B4 ON
ESC
Returns to the
previous
screen.
Cancels the setting and
returns to the previous
operation.
Cancels the setting
and returns to the
previous operation.
B0 ON
OK
Selects the
menu item at
the cursor
position.
Confirms the setting. Confirms the setting. B1 ON
Z211-E1-02A.book Page 17 Monday, May 21, 2007 12:38 PM
LED-type CPU Units without Display 0 6o bébfiééo 21113me 9 0:9 “29 319 o
18
Nomenclature and Basic Operation Section 1-3
LED-type CPU Units without Display
Models with 10 I/O Points
LED Indicators
Name Color Meaning
POWER Green Lit Power supplied
Not lit No power
RUN Green Lit Operating (RUN)
Not lit Stopped (STOP)
ERROR Red Lit Error
Not lit Normal
2
Left Side Front
Power supply
terminals Input terminals
Right Side
Battery Unit connector
(Remove the seal to
connect the Battery
Unit.)
Output terminals
Personal computer
connector (also used for
Memory Cassette.)
LED indicators
Expansion Unit
connector cover
Remove this cover to
connect Expansion I/O Unit.
Z211-E1-02A.book Page 18 Monday, May 21, 2007 12:38 PM
,1 Expansion 110 Units .93 £9 .29 199 Beacon g‘e‘
19
Nomenclature and Basic Operation Section 1-3
Models with 20 I/O Points
LED Indicators
Expansion I/O Units
Name Color Meaning
POWER Green Lit Power supplied
Not lit No power
RUN Green Lit Operating (RUN)
Not lit Stopped (STOP)
ERROR Red Lit Error
Not lit Normal
I
6
I
7
I
8
I
9
I
a
I
b
20C2AR-A-V2
Q
4
Q
6
Q
5
Q
7
Left Side Front
Power supply
terminals Input terminals
Right Side
Battery Unit
connector
(Remove the
seal to connect
the Battery Unit.)
Output terminals
Personal computer
connector (also used for
Memory Cassette.)
LED indicators
Expansion Unit
connector cover
Remove this cover to
connect Expansion I/O Unit.
Left Side Front
Input terminals
Right Side
Expansion Unit
connector
Output terminals Expansion Unit connector cover.
Remove this cover to
connect Expansion I/O Unit.
Z211-E1-02A.book Page 19 Monday, May 21, 2007 12:38 PM
H015: 15 SW? Isuuuaua manna ++ npu: 1:- 5w? mooooooooo v: ummmmu ++ non: 15 RUN K: wounoouoo on on v: munmunm ++ ED 6:3 0 0 H H e v 9
20
Nomenclature and Basic Operation Section 1-3
1-3-2 Screen Transitions
STOP Mode
When leaving RUN Mode
When Expansion I/O Unit
is connected.
Display Function Screen
Note: The display will be
blank if the display function is
not being used.
(User-
specified
message)
RUN Mode
When power is turned ON
When Expansion I/O Unit
is connected.
Display Function Screen
Note: The display will be
blank if the display function is
not being used.
(User-
specified
message)
STOP Mode
PROGRAM
RUN
PARAMETER
SET CLOCK
PARAMETER
SET CLOCK
LANGUAGE
OTHER
RUN Mode
MONITOR
STOP
PARAMETER
SET CLOCK
RUN
PARAMETER
SET CLOCK
LANGUAGE
OTHER
RUN
RUN
RUN
RUN
Z211-E1-02A.book Page 20 Monday, May 21, 2007 12:38 PM
Display Screens it: +5 “SJ 1 0000000000 00 ummu <7 s:="" nun:="" 15="" steip="" x:="" oooooooooo="" v’:="" seddwdee="" ‘0="" 0000000000="" 00="">
21
Nomenclature and Basic Operation Section 1-3
Display Screens
Main Screen
When One or More Expansion I/O Units Are Connected
I0 I1 I2 I3 I4 I5
( : OFF/: ON)
Q0 Q1 Q2 Q3
@@@@
Q0 Q1 Q2 Q3
@@@@
Q4 Q5 Q6 Q7
@@@@
Ia Ib
I0 I1 I2 I3 I4 I5 I6 I7 I8 I9
Day
Time (min:s)
Operating mode CPU input bit (I) status
CPU output bit (Q) status
(@: OFF/: ON)
CPU Units
with 10 I/O
points
CPU Units
with 20 I/O
points
CPU Units
with 10 I/O
points
CPU Units
with 20 I/O
points
X0 X1 X2 X3 X4 X5 X6 X7 X8 X9
Xa Xb
( : OFF/: ON)
Ya Yb
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9
@@@@@@@@@@
@@
Expansion I/O Unit input bit (X) status
Expansion I/O Unit output bit (Y) status
(@: OFF/: ON)
Note: The display depends
on the number of input
points on the connected
Expansion I/O Units.
Note: The display depends
on the number of output
points on the connected
Expansion I/O Units.
Day display
SU: Sunday
MO: Monday
TU: Tuesday
WE: Wednesday
TH: Thursday
FR: Friday
SA: Saturday
Z211-E1-02A.book Page 21 Monday, May 21, 2007 12:38 PM
Menu Screen Configuration an G «L 0 «a L G ‘7 L
22
Nomenclature and Basic Operation Section 1-3
Menu Screen Configuration
COM SPEED
DATA BIT
STOP BIT
PARITY
MONITOR
STOP
PARAMETER
SET CLOCK
RUN Mode Ladder Monitor Screen
The ON/OFF status of input bits can be checked by
monitoring the ladder program.
Switches to STOP mode.
The operation status of the timers, counters, and analog
comparators can be monitored and the settings changed
during operation. Refer to page 27.
STOP Mode Ladder Program Edit Screen
(Refer to page 25.)
PROGRAM
RUN
PARAMETER
SET CLOCK
EDIT PROG
DELETE PROG
CASSETTE
Creates and edits
ladder program.
Deletes ladder program and parameters.
Memory Cassette Operation (Refer to page 111.)
SAVE(CPU-MC)
LOAD(MC-CPU)
ERASE
Transfers programs
between ZEN and
the Memory Cassette
and initializes the
Memory Cassette.
Switches to RUN mode.
Note: Displayed only when a Memory
Cassette is mounted.
Changes the settings for timers, counters, and analog comparators.
(Refer to page 30.)
Date and Time Settings (Refer to page 58.)
PROGRAM
RUN
PARAMETER
SET CLOCK
SET CLOCK
SUMMER TIME
SET CLOCK
yy/mm/dd
00/01/01
00:03(SA)
Sets the date and
time.
Set when shipping to countries that
use summer time. (Refer to page 107.)
Display Language Settings (Refer to page 57.)
SET CLOCK
LANGUAGE
LANGUAGE
ENGLISH
Communications Settings (Models with Communications Only)
PARAMETER
SET CLOCK
LANGUAGE
RS485
NODE NO
COM SPEED
DATA BIT
STOP BIT
Settings are made for communications with
external devices. (Refer to the ZEN
Communications Manual (Z212).)
The display language can be changed.
English, Japanese, German, French, Italian, and
Spanish
EDIT PROGRAM
NO
YES
Other Settings
PARAMETER
SET CLOCK
LANGUAGE
OTHER
PASSWORD
BACKLIGHT
INPUT FILTER
SYSTEM INF
Other settings can be made. Refer to the following
page for details.
Select YES with
RUN
RUN
Z211-E1-02A.book Page 22 Monday, May 21, 2007 12:38 PM
23
Nomenclature and Basic Operation Section 1-3
Other Submenus
PASSWORD
BACKLIGHT
INPUT FILTER
SYSTEM INF
PASSWORD
0000
Setting Passwords (Refer to page 102.)
Set a password when you want to protect
programs from being read. The password
setting range is 0000 to 9999.
BACKLIGHT
INPUT FILTER
SYSTEM INF
MODEM INI
BACKLIGHT
2min
Changing Cutout Time for Backlight (Refer to page 106.)
Set the automatic cutout time for the backlight
in the LCD screen.
2 min, 10 min, 30 min, Always ON
INNER
EXP1
EXP2
EXP3
Setting Input Filters (Refer to page 104.)
Set the input filters to ON or OFF for the CPU
Unit or Expansion I/O Units. Set to ON when
noise or chattering may affect operation.
“EXP1” to “EXP3” will be displayed depending
on the number of Expansion I/O Units
connected.
U03.00
060201
INT:I06O04
EX1:I04O04
Reading System Information (Refer to page 108.)
Read system information, such as the CPU
Unit software version or the date it was
created, the number of I/O points on the CPU
Unit or the Expansion I/O Units, and whether or
not LCD, RTC, or analog input functions are
supported.
EX2:I04O04
EX3:I04O04
RMT:I00000
LCD:YES
RMT:I00000
LCD:YES
RTC:YES
ADC:YES
For future expansion. Do not set.
Z211-E1-02A.book Page 23 Monday, May 21, 2007 12:38 PM
Menu Select n Example nu ma U n + 96 >- >§
24
Nomenclature and Basic Operation Section 1-3
1-3-3 Basic Operation
Menu Selection Example
Use the Up/Down Buttons to move the
cursor.
Press the OK Button to select the flashing
menu. The settings will flash on a reversed
display.
Settings cannot be changed during reversed
display.
Press the OK Button to change from a
highlighted cursor to a flashing cursor.
Settings can now be changed.
Use the Up/Down Buttons to change the
setting.
Use the Up Button to select GERMAN.
RUN
PARAMETER
SET CLOCK
LANGUAGE
Main menu
display
Flashing cursor
LANGUAGE
Highlighted cursor
ENGLISH
LANGUAGE
ENGLISH
Flashing cursor
LANGUAGE
GERMAN
LANGUAGE
SET?
OK/ESC
GERMAN
A confirmation message will be
displayed asking if you want to
change to German display.
RUN
PARAMETER
KALENDER
SPRACHE
Press the OK Button
to change from
English to German.
RUN
PARAMETER
SET CLOCK
LANGUAGE
Press the ESC Button to
cancel the change and return
to the previous screen.
Z211-E1-02A.book Page 24 Monday, May 21, 2007 12:38 PM
Example Operation in the Ladder Program Edit Screen 'T F m [a an ' II 9 Ma an 3 9 0 0 MI BB II N I BB II I N] [a ED 9 I an
25
Nomenclature and Basic Operation Section 1-3
Example Operation in the Ladder Program Edit Screen
The highlighted cursor will appear in the
initial write position. During highlighted
cursor display, the cursor can be moved to
the input or output write positions.
Up/Down Buttons: Move the highlighted
cursor up and down.
Left/Right Buttons: Move the highlighted
cursor Left/Right.
Press the OK Button at the input write
position to display the input default setting IO
and the normally open condition symbol. “I”
will flash.
Flashing Cursor at the I Position
Up/Down Buttons: Change the bit type.
Right Button: Moves the flashing cursor
to the right.
OK Button: Sets the bit type and moves
the flashing cursor to the bit address
position.
Flashing Cursor at the 0 Position
Up/Down Buttons: Change the bit
address.
OK Button: Completes the writing of the
bit.
Switching between Normally Open and
Normally Closed Conditions
You can use the ALT Button to switch
between the N.O. and N.C. conditions,
regardless of the position of the flashing
cursor.
When the first input has been written, the
highlighted cursor moves to the next input
position.
Use the above procedure to enter program
input conditions in series.
When writing serial inputs, the connecting
line between inputs is drawn automatically.
Select
Program/
Edit.
Line No.
at
cursor
Highlighted cursor
Z211-E1-02A.book Page 25 Monday, May 21, 2007 12:38 PM
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26
Nomenclature and Basic Operation Section 1-3
Press the ALT Button with the highlighted
cursor in the input writing position to change
the cursor to a flashing left arrow to enable
connecting lines to be drawn.
Up/Down Buttons: Draw vertical connecting
lines.
Left/Right Buttons: Draw horizontal
connecting lines.
Press the Right Button twice to draw a line to
the output bit. The cursor will change to a
highlighted cursor at the output bit write
position.
Press the OK Button at the output bit write
position to display the default output Q0. Q
will flash.
Flashing Cursor at the Q (Bit Type)
Position
Up/Down Buttons: Change the type of
output
Right/Left Buttons: Move the flashing
cursor.
OK Button: Sets the bit type and moves
the flashing cursor to the bit address
position.
Flashing Cursor at the (Additional
Output Function) Position
Up/Down Buttons: Selects the additional
output function
OK Button: Sets the additional output
function and moves the flashing cursor
to the bit address position.
Flashing Cursor at the 0 (Bit Address)
Position
Up/Down Buttons: Select the bit address
OK Button: Completes the output write.
Press the OK Button to complete the bit write
and to move the highlighted cursor to the first
input position ON the next line.
Press the ESC Button to complete the writing
of the ladder program and to return to the
menu screen.
01
Z211-E1-02A.book Page 26 Monday, May 21, 2007 12:38 PM
a 09 Geo 09 w x s 9 RB RES an. m n x s a ma RES an m n x s a ma RES an 91 :9 9 GMT RES 15m DIR E x s a I: RES 1%. a9 ru x 9 RE I RES m an m x S a ma RES m 99 ru x ms 9 RE RE: m an m x :s 9 RB I RES m. an
27
Nomenclature and Basic Operation Section 1-3
Example Parameter Settings Screen Operation
When PA R A M E T E R is selected, the settings
for bits that are being used by the ladder
program are displayed.
(1) Selecting Parameters to Display
Press the OK Button to change the
highlighted cursor to a flashing cursor.
Use the Up/Down Buttons to select another
timer.
When multiple parameters of the same type
have been selected, use the Up/Down
Buttons to scroll through the numbers.
Press the Left Button to switch to another
type, move the flashing cursor to the bit type
position and use the Up/Down Buttons to
select the bit type.
Move the flashing cursor to the bit type
position and use the Up/Down Buttons to
select another bit type.
(2) Setting and Changing Parameters
Use the Left/Right Buttons to move the
highlighted cursor to the parameter to be set.
Press the OK Button to confirm the set
position. The cursor will change to a flashing
cursor.
Use the Up/Down Buttons to set the
parameter.
Press the OK Button to confirm the setting.
Select
Parameters
on menu
screen.
/
/
/
Z211-E1-02A.book Page 27 Monday, May 21, 2007 12:38 PM
9 F35 x ms 9 G 0” RES )9. fl FE x ms 9 - RES mm 0 m x was 9 «9e :23 a... m x was a m: RES 12.5'
28
Nomenclature and Basic Operation Section 1-3
Use the Left/Right or Up/Down Buttons to
move the highlighted cursor to the parameter
to be set.
Press the OK Button to confirm the set
position. The cursor will change to a flashing
cursor.
Use the Left/Right Buttons to select the digit
to be set.
Use the Up/Down Buttons to change the
value of each digit.
Press the OK Button to confirm the setting.
Press the ESC Button to complete the
settings.
Note If the ESC Button is pressed while ladder program or parameter
settings are being input, the input to that point will be canceled
and the settings will return to the original settings.
Z211-E1-02A.book Page 28 Monday, May 21, 2007 12:38 PM
IIO Work and Internal Holding Bits 4>—DDD«
29
Memory Areas Section 1-4
1-4 Memory Areas
I/O, Work, and Internal Holding Bits
Note 1. Output bit Q3 of CPU Units with communications cannot be
output externally. It can be used as a work bit.
2. The following additional functions can be selected for bit outputs.
Name Type Bit
addresses
No.
of
bits
Function Ladder
programs
Page
CPU Unit
input bits
I 0 to 5 6 CPU Units
with 10 I/O pts
Reflect the ON/OFF
status of the input
devices connected to
the CPU Unit input
terminals.
N.O./N.C.
inputs
32
0 to b 12 CPU Units
with 20 I/O pts
Expansion
I/O Unit
input bits
X 0 to b 12 Reflect the ON/OFF status of the input
devices connected to the Expansion
I/O Unit input terminals.
32
Button
input bits
B 0 to 7 8 Turn ON when the operation buttons
are pressed in RUN mode. Cannot be
used for LED-type CPU Units.
99
Analog
comparator
bits
A 0 to 3 4 Output the comparison result for
analog inputs. Can only be used for
models with a 24-VDC power supply.
87
Compara-
tor bits
P 0 to f 16 Compare the present value of timers
(T), holding timers (#), and counters
(C), and outputs the comparison result.
91
8-Digit
comparator
bits
G 0 to 3 4 Compare the present value of 8-digit
counters (F) with a constant and
outputs the comparison result
94
CPU Unit
output bits
Q 0 to 3 4 CPU Units
with 10 I/O pts
(See note 1.)
Output the ON/OFF
status of the output
bits to the outputs
devices connected to
the CPU Unit.
N.O./N.C.
inputs
Outputs
(See note
2.)
32
0 to 7 8 CPU Units
with 20 I/O pts
Expansion
I/O Unit
output bits
Y 0 to b 12 Output the ON/OFF status of the output
bits to the outputs devices connected to
the Expansion I/O Unit.
32
Work bits M 0 to f 16 Can only be used within the program.
Cannot output to an external device.
-
Holding
bits
H 0 to f 16 Same as for work bits however the
holding bits maintain ON/OFF status
when power is turned OFF.
-
Execution condition
Bit address
Bit type
Additional function ([, S, R, A)
Z211-E1-02A.book Page 29 Monday, May 21, 2007 12:38 PM
Timers and Counters Timer Types
30
Memory Areas Section 1-4
Timers and Counters
Timer Types
Normal output [ Turns ON or OFF according to the ON/OFF status of the execution
condition.
Set/Reset S (set) Holds ON status after the execution condition turns ON once.
R (reset) Holds OFF status after the execution condition turns ON once.
Alternate A Alternates between ON and OFF whenever the execution condition
turns ON (input latch operation).
Name Type Bit ad-
dresses
No. of
timers/
counters
Function Use in
ladder
programs
Page
Timer T 0 to f 16 Can be switched between ON
delay, OFF delay, one-shot, flashing
pulse, and twin timer
operation.(See note.)
N.O./N.C.
condition
74
Holding
timer
# 0 to 7 8 Hold the present value during
counting even if the trigger input or
power supply is turned OFF.
Continues the timing when the
trigger input or power supply is
turned ON again.
74
Counter C 0 to f 16 Four-digit reversible counters that
can be incremented and
decremented.
78
8-Digit
counter
F 0 1 An eight-digit reversible counter
that can be incremented and
decremented. CPU Units with DC
power supplies support a high-
speed counter up to 150 Hz.
78
Weekly
timer
@ 0 to f 16 Can be switched between normal
operation, operation between days,
and pulse output operation. Cannot
be used for LED-type CPU Units.
81
Calendar
timer
0 to f 16 Can turn ON or OFF during a
specified date period. Cannot be
used for LED-type CPU Units.
86
XON delay Times down while the trigger input is ON and turns ON the timer bit when the set
time is reached.
OFF
delay
Turns ON the timer bit while the trigger input is ON, starts timing down when the
trigger input turns OFF, and turns OFF the timer bit when the set time is reached.
OOne-shot Turns ON the timer bit for the set period when the trigger input changes from OFF
to ON only.
FFlashing
pulse
Timer bit repeatedly turns ON/OFF at set intervals while the trigger input is ON.
WTwin Timer bit repeatedly turns ON/OFF at set intervals while the trigger input is ON. The
ON time and OFF time can be set separately.
Z211-E1-02A.book Page 30 Monday, May 21, 2007 12:38 PM
Disglay Bits 4% DP
31
Memory Areas Section 1-4
Display Bits
Function switching
Name Type Bit
addresses
No.
of
bits
Function Use in
ladder
programs
Page
Display D 0 to f 16 Display user-specified
character strings, times, timer
present values, counter present
values, or analog-converted
values. Cannot be used for
LED-type CPU Units.
Output 96
D Display
C Clear display
DDisplay No.
Function switching
Z211-E1-02A.book Page 31 Monday, May 21, 2007 12:38 PM
Connection Example or 4-point Exgan ' n ngut Unit 4-point Exnansion Outpu Unt and 8-poin Exnans on IIO Unlt CPU Units with 10 Ill) Points
32
Allocating I/O Bit Numbers Section 1-5
1-5 Allocating I/O Bit Numbers
For CPU Units with 10 I/O points, the input bit addresses I0 to I5 and
output bit addresses Q0 to Q3 (Q0 to Q2 for CPU Units with
communications) are always allocated to the CPU Unit.
For CPU Units with 20 I/O points, the input bit addresses I0 to Ib and
output bit addresses Q0 to Q7 are always allocated to the CPU Unit.
Up to 3 Expansion I/O Units can be added and input bit addresses X0
to Xb and output bit addresses Y0 to Yb are allocated in the order the
Units are connected.
Connection Example for 4-point Expansion Input Unit, 4-point
Expansion Output Unit, and 8-point Expansion I/O Unit
CPU Units with 10 I/O Points
Note Output bit Q3 of CPU Units with communications cannot be
output externally. It can be used as a work bit.
CPU Units with 20 I/O Points
Input bit
address
CPU Unit
(10 I/O points)
Expansion
I/O Unit 1
Expansion
I/O Unit 2
Expansion
I/O Unit 3
Output bit
address
I0 I1 I2 I3 I4 I5 X0 X1 X2 X3 X8 X9 Xa Xb
IN
0
IN
1
IN
2
IN
3
IN
4
IN
5
IN
0
IN
1
IN
2
IN
3
IN
0
IN
1
IN
2
IN
3
OUT
0
OUT
1
OUT
2
OUT
3
OUT
0
OUT
1
OUT
2
OUT
3
OUT
0
OUT
1
OUT
2
OUT
3
Q0 Q1 Q2 Q3 Y4 Y5 Y6 Y7 Y8 Y9 Ya Yb
X4 X5 X6 X7
IN
0
IN
1
IN
2
IN
3
OUT
0
OUT
1
OUT
2
OUT
3
Y0 Y1 Y2 Y3
(See
note.)
Expansion
I/O Unit 1
(8 I/O points)
Expansion
I/O Unit 2
(8 I/O points)
Expansion
I/O Unit 3
(4 inputs)
Input bit
address
Output bit
address
I0 I1 I2 I3 I4 I5 X0 X1 X2 X3 X4 X5 X6 X7
IN
0
IN
1
IN
2
IN
3
IN
4
IN
5
IN
0
IN
1
IN
2
IN
3
IN
0
IN
1
IN
2
IN
3
OUT
0
OUT
1
OUT
2
OUT
3
OUT
0
OUT
1
OUT
2
OUT
3
OUT
0
OUT
1
OUT
2
OUT
3
Q0 Q1Q2 Q3 Y0 Y1 Y2 Y3 Y4Y5 Y6 Y7
CPU Unit
(20 I/O points)
I6 I7 I8 I9 Ia Ib X8 X9 Xa Xb
IN
0
IN
1
IN
2
IN
3
IN
6
IN
7
IN
8
IN
9
IN
a
IN
b
OUT
4
OUT
5
OUT
6
OUT
7
Q4 Q5Q6 Q7
OUT
0
OUT
1
OUT
2
OUT
3
Y8Y9 Ya Yb
Z211-E1-02A.book Page 32 Monday, May 21, 2007 12:38 PM
0&65 ravwl.Ln * ,9 9,9 "u :29 0 WW of“) 5&‘oéidéé
33
Preparations for Operation Section 1-6
1-6 Preparations for Operation
Mount ZEN to Control Panels
The ZEN can be mounted to either a
DIN Track or directly onto the surface
of the control panel. Refer to page 36.
Connect Power Supply, Input, and Output
Devices
Wire the ZEN to the power supply, input,
and output devices. Refer to page 38.
Make Initial Settings
Make the settings required before
programming, such as date, time, and
display language. Refer to pages 57
and 58.
Write Program
Input the ladder program, including
timers, counters, and other parameters.
Use the ZEN Support Software when
using the LED-type CPU Units (without
LCD.) Refer to page 60.
Check Program Execution
Perform trial operation before starting
actual operation and check that the
system is operating correctly. Refer to
page 69.
Save Program
Debugged programs and all parameters
should be saved to a Memory Cassette
or ZEN Support Software to prevent
loss of the data. Refer to page 111.
Actual Operation
DIN Track
Inputs
Power
supply
Output
Load
Load
Load
Load
Operation
buttons
ON OFF
ZEN-ME01
Memory Cassette
Z211-E1-02A.book Page 33 Monday, May 21, 2007 12:38 PM
34
Preparations for Operation Section 1-6
Z211-E1-02A.book Page 34 Monday, May 21, 2007 12:38 PM
35
SECTION 2
Installation and Wiring
This section explains how to mount and wire the ZEN CPU Units and Expansion I/O Units.
2-1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2-1-1 Attention: Meeting the EC Low Voltage Directive . . . . . . . . . . . . 36
2-1-2 Connecting Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2-1-3 Installation Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
2-2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2-2-1 External Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2-2-2 Connectable Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2-2-3 Wiring Power Supply and Input Lines. . . . . . . . . . . . . . . . . . . . . . 40
2-2-4 Wiring CPU Units with AC Power Supplies . . . . . . . . . . . . . . . . . 41
2-2-5 Wiring CPU Units with DC Power Supplies . . . . . . . . . . . . . . . . . 44
2-2-6 Wiring Output Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Z211-E1-02A.book Page 35 Monday, May 21, 2007 12:38 PM
Protection by Cover Protection by Location Protection by Barrier ai
36
Mounting Section 2-1
2-1 Mounting
2-1-1 Attention: Meeting the EC Low Voltage Directive
The ZEN is an open-structure device. The right side of the enclosure (i.e., the
vertical surface where the Expansion Unit connector cover is located) does
not provide the mechanical strength against impact of a 500-g, 50-mm-dia.
steel ball from a height of 1,300 mm, as required in IEC/EN 61131-2.
Therefore, the ZEN must always be mounted inside a control panel and the
installation method must assure protection from such impact by using one of
the following installation methods.
Protection by Cover
Protection by Location
Protection by Barrier
2-1-2 Connecting Expansion Units
Up to 3 Expansion Units can be connected.
A
B
Cover plate
(e.g., control panel)
Cover Hole Dimensions
N = Number of Expansion I/O Units
CPU Unit A (mm) B (mm)
CPU Unit with 10 I/O points 47 70 + N × 35 + 2
CPU Unit with 20 I/O points 47 122.5 + N × 35 + 2
The area that needs to be protected against
mechanical impact. Install the ZEN close to the wall
of the control panel or in another location that will
protect it from mechanical impact.
Bottom View
Barrier
Insert insulation between the barrier and the ZEN if the
barrier is made of metal or other conductive material.
If another device is used as the barrier, use a class I device.
Remove the cover screw with a Phillips screwdriver, insert a flat-blade
screwdriver into the gap around the cover, and remove the cover.
1 Remove the Expansion Unit connector cover from the side
of the CPU Unit.
2 Insert the guides on the Expansion Unit into the CPU Unit.
3 Press the Expansion Unit and the CPU Unit together until
you can hear the connectors mate completely.
Phillips screwdriver Flat-blade screwdriver
CAUTION
Electrical shock may occur. Do not remove the Expansion Unit connector
cover unless an Expansion Unit will be permanently installed.
Z211-E1-02A.book Page 36 Monday, May 21, 2007 12:38 PM
Mountin Direction ig K? E vague Mountin to DIN Track
37
Mounting Section 2-1
2-1-3 Installation Method
Always mount the ZEN inside a control panel. The ZEN can either be
mounted to the surface of the control panel or onto a DIN Track.
Mounting Direction
Mounting to DIN Track
Use DIN Track with a width of 35 mm (OMRON model PFP-50N,
PFP-100N, or PFP-100N2).
Use End Plates (OMRON model PFP-M) to secure the ZEN on
the DIN Track.
Standard (Vertical) installation Horizontal installation
1 Pull down the hooks
on the bottom of the
ZEN.
2 Hang the slot at the
back of the ZEN on to
the top of the DIN
Track.
3 Attach the ZEN to the
DIN Track.
4 Push up the locking
hooks on the bottom
of the ZEN to lock the
ZEN in place.
Z211-E1-02A.book Page 37 Monday, May 21, 2007 12:38 PM
Surface Mounting Hanging Ducts
38
Wiring Section 2-2
Surface Mounting
With an Expansion Unit, pull out the DIN Track mounting hooks on
the top and bottom of the Unit to secure the Unit with screws.
2-2 Wiring
2-2-1 External Wiring
Do not run ZEN I/O lines in the same duct or conduit as power lines.
Hanging Ducts
Leave at least 300 mm between the power cables and the I/O or
control wiring, as shown in the following diagram.
Unit AScrew
size
Tightening
torque
CPU Units with 10 I/O Points 60 M4 1.03 N·m max.
CPU Units with 20 I/O Points 112.5
Expansion I/O Units --- M3 0.46 N·m max.
80
A 22.5 35 35
97
Z211-E1-02A.book Page 38 Monday, May 21, 2007 12:38 PM
Floor Ducts Conduits in Pow
39
Wiring Section 2-2
Floor Ducts
Leave at least 200 mm between the wiring and the top of the duct, as
shown in the following diagram.
Conduits
Separate the ZEN I/O lines, power and control lines, and power
cables, as shown in the following diagram.
Do not run ZEN I/O lines in the same duct or conduit as power lines.
I/O lines
Control cables and
power lines
Power cables
300 mm min.
300 mm min.
200 mm min.
Metal plate (iron)
I/O lines Control cables and
power lines Power cables
I/O lines
Control cables and
power lines Power cables
Z211-E1-02A.book Page 39 Monday, May 21, 2007 12:38 PM
:‘j
40
Wiring Section 2-2
2-2-2 Connectable Wires
Note When using a 2-line connection, use wires of the same size for
both lines.
Strip the sheath back 6.5 mm.
Note When using a 2-line connection, use terminals of the same size
for both lines.
Use a flat-blade screwdriver to tighten the terminal block screws
and tighten the screws to a torque of 0.565 to 0.6 N·m (5 to 5.3
in-lb).
Recommended screwdriver: SZS0.6X3.5 or SZF1-0.6X3.5
manufactured by Phoenix Contact
2-2-3 Wiring Power Supply and Input Lines
Precautions for Correct Use
• Do not use terminals that are not connected as relay terminals.
One-line connection 0.2 to 2.5 mm2
(Equivalent to AWG24 to AWG14)
Two-line connection 0.2 to 0.75 mm2
(Equivalent to AWG24 to AWG19)
6.5 mm
CAUTION
Fires may occasionally occur. Tighten the terminal block screws to a
torque of 0.565 to 0.6 N·m (5 to 5.3 in-lb).
Z211-E1-02A.book Page 40 Monday, May 21, 2007 12:38 PM
Wiring the CPU Unit Power Supply E}. g ‘/ ’K ‘K ‘K ’/ ’K ‘K ‘/ ’K ‘/ O mé© oo©®®©© I” @@6<§éé |="" cpu="" units="" and="" ex="" ansion="" iio="" unils="" with="" 10="" iio="" poinls="" l91="" hhh="" {nh="" e="" i!="" 0="" .©="" oo©®©©®="" ©®©oo®="">
41
Wiring Section 2-2
2-2-4 Wiring CPU Units with AC Power Supplies
Wiring the CPU Unit Power Supply
To prevent voltage drops due to starting currents and inrush
currents in other devices, wire the ZEN power supply circuit
separately from other power circuits.
When using more than one ZEN, to prevent voltage drops due to
inrush current and circuit-breaker malfunctions, it is
recommended that each one is wired separately.
To prevent the influence of noise from power lines, twist the
power lines. Wiring via a 1-to-1 isolation transformer is also
effective.
Use wires that are thick enough to allow for voltage drops and
current variations within the allowable range.
Include a circuit protector or breaker installed separately from
other circuits in the power supply circuit for the ZEN.
Power Supply and Input Circuits
CPU Units and Expansion I/O Units with 10 I/O Points
L N
Circuit
protector
Input device
Input device
Expansion I/O Unit
(AC input type)
AC power supply
Isolation
transformer
CPU Unit (AC power supply type)
L N IN0 IN1 IN2 IN3
L N NC I0 I1 I2 I3 I4 I5
100 to 240 VAC, 50/60 Hz
LN
Circuit
protector Input device
CPU Unit with 10 I/O points ZEN-8E1AR Expansion I/O Unit
(AC input type)
Z211-E1-02A.book Page 41 Monday, May 21, 2007 12:38 PM
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42
Wiring Section 2-2
CPU Units with 20 I/O Points and Expansion I/O Units
Connecting Expansion I/O Units with DC Inputs
Precautions for Safe Use
Supply power to both the CPU Unit and Expansion I/O Units
from the same power supply and turn them ON and OFF at the
same time.
When connecting Expansion I/O Units with DC inputs to a CPU
Unit with an AC power supply, the burst noise immunity will be 1
kV (IEC 61000-4-4).
Precautions for Correct Use
Input circuit commons are internally connected to the N terminal
of the power circuit for CPU Units with AC power supplies. Input
circuit commons are internally connected to the N terminal of the
power circuit for Expansion I/O Units with AC power supplies.
Wire the L terminal to the power supply of the input device.
L N NC I0 I1 I2 I3 I4 I5 NC I6 I7 I8 I9 Ia Ib
L N IN0 IN1 IN2 IN3
LN
Circuit
protector
CPU Unit with 20 I/O points Expansion I/O Unit
ZEN-8E1AR
(AC input type)
100 to 240 VAC, 50/60 Hz
Input device
L N NC I0 I1 I2 I3 I4 I5
COM
IN0 IN1 IN2 IN3
COM
IN0 IN1 IN2 IN3
LN
Circuit
protector
CPU Unit with 10 I/O points Expansion I/O Unit
ZEN-8E1DT
(DC inputs and
transistor outputs)
100 to 240 VAC, 50/60 Hz
Input
device
Input
device
Expansion I/O Unit
ZEN-8E1DR
(DC inputs and
relay outputs)
DC power supply
Z211-E1-02A.book Page 42 Monday, May 21, 2007 12:38 PM
43
Wiring Section 2-2
Connecting 2-Wire AC Sensors
A two-wire sensor cannot be connected directly to the AC input. To
connect a two-wire sensor, attach an external bleeder resistance in
the way shown below.
Example: Connecting to a CPU Unit or Expansion I/O Unit
a) Use a resistance that satisfies both of the following
conditions.
b) Because of heat generation, use a resistor with at least the
following wattage.
Note Calculating the Bleeder Resistance
when Connecting an OMRON E2E-
X10Y 2-Wire AC Sensor
This calculations in this example
are based on an input voltage of
85 to 110 V AC.
The following values are from the
Sensor datasheet.
The Sensor's maximum leakage
current is 1.7 mA.
The minimum current when the
Sensor's OFF residual voltage is
L
R
N
I0 to I5
Two-wire
sensor
Internal
circuit
R1 () Max. OFF-voltage for AC input (25 VAC)
Sensor’s max. leakage current (A)
R2 () Voltage supplied to sensor (V)
Min. current for which the
sensor’s OFF residual voltage is
less than 25 V (A)
P (W)
(Voltage supplied
to sensor)2
Resistance value × 3 (allowance factor)
Output residual voltage
Load current
(
mA
)
Load residual
voltage
Load voltage VL (V)
At 100 V AC
E2E-X@Y@
ON
100 VAC
OFF
Z211-E1-02A.book Page 43 Monday, May 21, 2007 12:38 PM
CPU Units with 10 Ill) Points Connec mg a Negaiive Common [PNP Connection) ‘ir fiHHH u u .2 u u ‘5 ”(so ©®m©© Conneclinq Analoq Input Devices to lnoui Terminals l4 and IS fiHHFEL 4L m0® @u ©®©
44
Wiring Section 2-2
25 V or less (i.e., the OFF voltage for the ZEN) is 5 mA, as shown
in the residual voltage characteristic graph.
From the formulas given above,
R1 25 V AC/1.7 mA= 14.7 k
R2 85 V AC/5 mA = 17 k
The bleeder resistor must thus be 14 k.
The Sensor output current in this case would be 100 VAC/14 k,
or 7 mA. This satisfies the Sensor's control output range of 5 to
300 mA.
The bleeder resistor capacity is calculated as shown below and
must be 3 W.
P (110 V AC2)/14 k × 3 = 2.59 W
2-2-5 Wiring CPU Units with DC Power Supplies
Power Supply and Input Circuits
CPU Units with 10 I/O Points
Connecting a Negative Common (PNP Connection)
Connecting Analog Input Devices to Input Terminals I4 and I5
COM
CPU Unit with
10 I/O points
Input device
12 to 24 VDC
COM
I0 I1 I2 I3 I4 I5
CPU Unit with
10 I/O points
12 to 24 VDC
Note: When connecting an analog
input device, always connect
the negative side to the COM
terminal.
Z211-E1-02A.book Page 44 Monday, May 21, 2007 12:38 PM
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45
Wiring Section 2-2
Connecting Positive Common (NPN Connection)
Precautions for Correct Use
Apply the power supply voltage through a relay or switch in such
a way that the voltage reaches the rated value within 4 s. If the
voltage is applied gradually, the power may not be reset or
unstable output operations may result.
Connect the COM terminals before turning ON the power supply.
Not connecting the COM terminals or connecting them after
turning ON the power supply may cause malfunctions.
CPU Units with 20 I/O Points
Connecting a Negative Common (PNP Connection)
Connecting Analog Input Devices to Input Terminals Ia
and Ib
COM
CPU Unit with
10 I/O points
Input device
12 to 24 VDC
Note: If a positive common is used,
analog input devices cannot be
connected to I4 and I5.
COM
I5 I6NC I7 I8 I9 Ia IbI0 I1 I2 I3 I4
CPU Unit with
20 I/O points
Input device
12 to 24 VDC
COM
I5 I6NC I7 I8 I9 Ia IbI0 I1 I2 I3 I4
CPU Unit with
20 I/O points
12 to 24 VDC
Note: When connecting
an analog input
device, always
connect the
negative side to the
COM terminal.
Z211-E1-02A.book Page 45 Monday, May 21, 2007 12:38 PM
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46
Wiring Section 2-2
Connecting Positive Common (NPN Connection)
Precautions for Correct Use
Apply the power supply voltage through a relay or switch in such
a way that the voltage reaches the rated value within 4 s. If the
voltage is applied gradually, the power may not be reset or
unstable output operations may result.
Be sure to connect COM terminal before turning ON power. The
un-connecting COM terminal or the wiring change after turning
ON power may cause malfunction.
Expansion I/O Units
Connecting a Negative Common
Connecting Positive Common
COM
I5 I6NC I7 I8 I9 Ia IbI0 I1 I2 I3 I4
Input device
12 to 24 VDC Note: If a positive common is used,
analog input devices cannot be
connected to Ia and Ib.
COM
I5I0 I1 I2 I3 I4
COM
IN0 IN1 IN2 IN3
COM
IN0 IN1 IN2 IN3
Expansion I/O Unit
ZEN-8E1DR
(with DC power input
and relay outputs)
Input
devices
12 to 24 VDC
CPU Unit with 10 I/O Points
Input devices
Expansion I/O Unit
ZEN-8E1DT
(with DC power input
and transistor outputs)
COM
I5I0 I1 I2 I3 I4
COM
IN0 IN1 IN2 IN3
COM
IN0 IN1 IN2 IN3
Expansion I/O Unit
ZEN-8E1DR
(with DC power input
and relay outputs)
Input
devices
12 to 24 VDC
CPU Unit with 10 I/O Points Expansion I/O Unit
ZEN-8E1DT
(with DC power input
and transistor outputs)
Input devices
Z211-E1-02A.book Page 46 Monday, May 21, 2007 12:38 PM
47
Wiring Section 2-2
Precautions for Safe Use
Supply power to both the CPU Unit and Expansion I/O Units
from the same power supply and turn them ON and OFF at the
same time.
Expansion I/O Units with AC inputs (ZEN-8E1AR) cannot be
connected to a CPU Unit with a DC power supply.
Precautions for Correct Use
The input common for Expansion I/O Units with relay outputs
(ZEN-8E1DR) is internally connected to one side of the power
supply circuit (COM terminal).
A power supply does not need to be connected to Expansion I/O
Units with transistor outputs (ZEN-8E1DT).
Z211-E1-02A.book Page 47 Monday, May 21, 2007 12:38 PM
2H; 1f " 7,; Leakage Current from Input Devices
48
Wiring Section 2-2
Connecting Input Devices to the CPU Unit
The following table shows how to connect various input devices.
Note Do not use the following wiring with voltage-output devices:
Leakage Current from Input Devices
A leakage current can cause false inputs when using 2-wire DC
sensors (proximity switches or photoelectric switches) or limit
switches with LEDs. False inputs won’t occur if the leakage current is
Device Circuit diagram
Relay output
NPN open collector
NPN current output
PNP current output
Voltage output
IN
COM ZEN
+
Output
+
0 V
IN
COM
ZEN
+
Use the same power supply for the input and sensor.
Constant
current
circuit
Output
+
0 V
IN
COM
ZEN
+
IN
COM
ZEN
+
Output
+
0 V
IN
COM
ZEN
+
Output
+
0 V
Sensor
power supply
IN
COM (+)
ZEN
+
Output
+
0 V
Z211-E1-02A.book Page 48 Monday, May 21, 2007 12:38 PM
x c
49
Wiring Section 2-2
less than 0.8 mA. If the leakage current exceeds this value, insert a
bleeder resistor in the circuit to reduce the input impedance, as
shown in the following diagram.
Note The OFF voltage of the analog/digital input terminals on the CPU
Unit is 30 V DC. A 2-wire DC sensor can not be connected.
Refer to page 123 Input Specifications for details on the values LC, IC, and EC.
The input impedance, input current, and OFF voltage may vary depending on
the input being used.
RZEN
Input power
supply
Bleeder
resistor
2-wire sensor, etc.
I: Device's leakage current (mA)
R: Bleeder resistance (k)
W: Bleeder resistor's power rating (W)
The equations above were derived from the following equations:
LC: ZEN's input impedance (k)
IC: ZEN's input current (mA)
EC: ZEN's OFF voltage (V) = 5.0 V
R = Lc × 5.0
I × Lc 5.0 k max. W = 2.3
RW min.
R × Input voltage (24)
Input Current (Ic)
R + Input voltage (24)
Input Current (Ic)
I × OFF voltage (Ec: 5.0)
W Input voltage (24)
R× Input voltage (24) × tolerance (4)
Z211-E1-02A.book Page 49 Monday, May 21, 2007 12:38 PM
Inductive Loads o n
50
Wiring Section 2-2
Inductive Loads
When connecting an inductive load to an input, connect a diode in
parallel with the load. The diode should satisfy the following
requirements:
1,2,3... 1. Peak reverse-breakdown voltage must be at least 3 times the load
voltage.
2. Average rectified current must be 1 A.
IN
COM
ZEN
Diode
Z211-E1-02A.book Page 50 Monday, May 21, 2007 12:38 PM
99 99 99 $90 Q© ”O 991919 Q9 Q”
51
Wiring Section 2-2
2-2-6 Wiring Output Circuits
(1) Relay Output Type
For CPU Units with 10 I/O points and Expansion I/O Units, all 4
outputs in the relay output circuits have independent contacts. For
CPU Units with 20 I/O points, outputs Q0 to Q3 in the relay output
circuits have independent contacts and outputs Q4 to Q7 have 2
points per common.
There are no restrictions on polarity.
Q0 Q1 Q2 Q3
Load
Load
Load
Load
CPU Unit with 10 I/O points
B(+) A()
Q0 Q1 Q2
RS-485
Load
Load
Load
Communications-type CPU Unit
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
CPU Unit with 20 I/O points
Load
Load
Load
Load
Load
Load
Load
Load
OUT
0OUT
1
OUT
2OUT
3
Load
Load
Load
Load
Expansion I/O Unit
Z211-E1-02A.book Page 51 Monday, May 21, 2007 12:38 PM
52
Wiring Section 2-2
(2) Transistor Output Type
For CPU Units with 10 I/O points and Expansion I/O Units, all 4
outputs in the transistor output circuits have independent circuits. The
terminals of output have polarity given on the terminal block, but no
problem will result from reversing the connection positions of the
power supply and load.
For CPU Units with 20 I/O points, outputs Q0 to Q3 in the transistor
output circuits have independent circuits and outputs Q4 to Q7 have
2 points per common. The terminals of output Q0 to Q3 have polarity
given on the terminal block, but no problem will result from reversing
the connection positions of the power supply and load.
Precautions for Correct Use
Do not exceed a cable length of 10 m when connecting transistor
outputs.
Q0
+Q1 Q2 Q3
+++
Q0 to Q3
CPU Unit with 10 I/O points
Load
Load
Load
Load
Load
Q0 Q1 Q2 Q3
Q4 Q5 Q6 Q7
+
++++
+
Q0 to Q3
CPU Unit with 20 I/O points
Load
Load
Load
Load
Load
Load
Load
Load
Load
OUT2 OUT3
OUT0 OUT1
+
+
+
+
OUT0 to OUT3
Expansion I/O Unit
Load
Load
Load
Load
Load
Z211-E1-02A.book Page 52 Monday, May 21, 2007 12:38 PM
(1) Oulpul Short Circuil Protection (2) Inductive Loads
53
Wiring Section 2-2
Output Wiring Precautions
(1) Output Short Circuit Protection
We recommend adding a protective fuse to all output circuits to
protect the output elements and PCBs from burning if the load
connected to the output terminal short-circuits.
(2) Inductive Loads
When connecting an inductive load to an input, connect a surge
protector or diode in parallel with the load.
The surge protector’s components should have the following ratings:
The diode should satisfy the following requirements:
Peak reverse-breakdown voltage must be at least 3 times the load
voltage.
Average rectified current must be 1 A.
OUT
COM
ZEN Surge protector
Relay Output
(+)
()
ZEN Diode
Relay Output
(Transistor Output)
(+)
()
ZEN
Relay Output
(Transistor Output)
Diode
Z211-E1-02A.book Page 53 Monday, May 21, 2007 12:38 PM
[3) lnrush Currenl Considerations _(\_____r;V. [4) Fuse Inserl n _o_q_
54
Wiring Section 2-2
(3) Inrush Current Considerations
When switching a load with a high inrush current in the ZEN relay
output or transistor output model, such as an incandescent lamp,
suppress the inrush current as shown below.
(4) Fuse Insertion
The ZEN with transistor output may burn if the load is short-circuited,
therefore, insert a protective fuse in series to the load.
R
R
Countermeasure 1
Providing a dark current of
approx. one-third of the rated
value through an incandescent
lamp
Countermeasure 2
Providing a limiting resistor
Z211-E1-02A.book Page 54 Monday, May 21, 2007 12:38 PM
55
SECTION 3
Programming and Operating Methods
This section explains how to create and edit ladder programs and how to use the timers, counters,
comparators, display function and buttons switches.
3-1 Selecting Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3-2 Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3-3 Creating Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-3-1 I/O Wiring and Internal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-3-2 Clearing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3-3-3 Writing Ladder Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
3-4 Confirming Ladder Program Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
3-5 Correcting Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3-5-1 Changing Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3-5-2 Changing Additional Bit Output Functions . . . . . . . . . . . . . . . . . . . . . 71
3-5-3 Deleting Inputs, Outputs, and Connection Lines . . . . . . . . . . . . . . . . . 72
3-5-4 Inserting Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
3-5-5 Deleting Blank Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
3-6 Using Timers (T) and Holding Timers (#). . . . . . . . . . . . . . . . . . . . . . . . . . . 74
3-6-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 76
3-6-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 76
3-6-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
3-7 Using Counters (C) and the 8-Digit Counter (F) . . . . . . . . . . . . . . . . . . . . . . 78
3-7-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 78
3-7-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 79
3-7-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
3-8 Using Weekly Timers (@) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
3-8-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 82
3-8-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 83
3-8-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
3-9 Using Calendar Timers (*). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
3-9-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 86
3-9-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 86
3-9-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
3-10 Analog Inputs (Analog Comparators (A)) . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
3-10-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 89
3-10-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 89
3-10-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
3-11 Comparing Timer/Counter Present Values Using Comparators (P) . . . . . . . 91
3-11-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 91
3-11-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 92
3-11-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
3-12 Comparing the 8-Digit Counter (F) Present Value Using 8-Digit
Comparators (G) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
3-12-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 94
3-12-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 94
3-12-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Z211-E1-02A.book Page 55 Monday, May 21, 2007 12:38 PM
56
3-13 Displaying Messages (Display Bits (D)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
3-13-1 Settings in the Ladder Program Edit Screen . . . . . . . . . . . . . . . . . . . . .96
3-13-2 Settings in the Parameter Settings Screen. . . . . . . . . . . . . . . . . . . . . . .97
3-14 Using Button Input Bits (B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Z211-E1-02A.book Page 56 Monday, May 21, 2007 12:38 PM
Opera 'on to Select German Mum 15 STOP noooooo a: mum: 9 9 9 9 SEEHNETER SET ELDCK LfiNEUfiBE LflNb‘Uflb‘k ENGLIS- LfiNGUfiGE ENGLISH
57
Selecting Display Language Section 3-1
3-1 Selecting Display Language
There is a choice of 6 display languages. The default language is English.
Operation to Select German
Press the OK Button to change to the Menu
Screen.
Press the Down Button 4 times to move the
cursor to “LANGUAGE”.
Press the OK Button to display the current
language (“ENGLISH”). The final “H” will be
highlighted and flashing.
Press the OK Button to make the whole word
“ENGLISH” flash. A different language can
now be selected.
Press the Up Button to select GERMAN.
Press the OK Button to display a
confirmation message.
Press the OK Button to complete the setting.
The display language will change to German.
Tur n O N
the power.
▲ ▼
Use the Up/Down Buttons to
select a language.
SPANISH
ITALIAN
FRENCH
GERMAN
JAPANESE
ENGLISH
LANGUAGE
GERMAN
LANGUAGE
SET?
OK/ESC
GERMAN
RUN
PARAMETER
KALENDER
SPRACHE
Z211-E1-02A.book Page 57 Monday, May 21, 2007 12:38 PM
58
Setting the Date and Time Section 3-2
3-2 Setting the Date and Time
The date and time are not set when the product is shipped. The date and
time must be set before the ZEN can be used. LED-type CPU Units (ZEN-
@0C2@@-@-V2) do not have a calendar and clock function.
Press the OK Button to display the submenu
for clock settings. Select SET CLOCK from
the submenu.
Press the OK Button to display the current
date and time settings. The right digit of the
date will be highlighted and flashing.
Current time: hh:mm (day)
Current date: yy/mm/dd
Press the OK Button to
change from a highlighted
cursor to a flashing cursor
and enable data to be
changed.
Set the date and time.
Use the Up/Down Buttons to change the
setting.
Use the Left/Right Buttons to move the
cursor.
The day will automatically change when the
date is set.
Press the OK Button to display a
confirmation message.
Press the OK Button to confirm and
complete the setting.
Precautions for Correct Use
If the power supply is turned OFF for two days or more at 25°C, the
date and time will return to the default setting (00/1/1; 00:00 (SA)).
PROGRAM
RUN
PARAMETER
SET CLOCK
Select SET
CLOCK.
SET CLOCK
SUMMER TIME
SET CLOCK
yy/mm/dd
00/01/0
00:03(SA)
SET CLOCK
yy/mm/dd
00/01/01
00:03(SA)
Days of the week
SU: Sunday
MO: Monday
TU: Tuesday
WE: Wednesday
TH: Thursday
FR: Friday
SA: Saturday
SET CLOCK
yy/mm/dd
00/04/01
11:35(SU)
SET CLOCK
SET?
OK/ESC
11:35(SU)
Z211-E1-02A.book Page 58 Monday, May 21, 2007 12:38 PM
59
Setting the Date and Time Section 3-2
This may cause programs using calendar timers or weekly timers to
malfunction. Therefore, mount a Battery Unit for the system if the
power supply is expected to be interrupted for an extended time.
(Refer to page 110.)
Note 1. The year can be set between 2000 and
2099.
2. If the Daylight Saving Time (DST) is set,
“S” will appear at the top right of the time
setting screen during the Daylight Saving
Time (DST) period. (Refer to page 107.)
SET CLOCK S
yy/mm/dd
01/05/01
00:00(TU)
“S” displayed during
the Daylight Saving
Time (DST) period
Z211-E1-02A.book Page 59 Monday, May 21, 2007 12:38 PM
aS—M—fl MMLHH
60
Creating Ladder Programs Section 3-3
3-3 Creating Ladder Programs
Example Program
This section explains how to write ladder
programs, based on a simple circuit
example.
Refer to the ZEN-SOFT01-V4 ZEN Support
Software Operation Manual (Z184) for
information on programming LED-type CPU
Units.
3-3-1 I/O Wiring and Internal Operation
3-3-2 Clearing Programs
Clear the ladder program before starting to
write a program. By performing the Delete
Program operation, the ladder program will
be completely cleared. The display
language, date/time settings, and all other
settings will not be initialized.
SW1 SW2
Ry
Ry
Power supply
terminals
L
N
SW1 SW2
LNI0 I2 I3I1
I0 I1
Q0
(1) (2)
Q0
(3)
Q0 Q1
Input terminals
Ladder
program
Output terminals
Load
Connect switches SW1 and SW2
between N and input terminals I0
and I1.
When SW1, connected to input bit
I0, turns ON or OFF, I0 (indicated
by (1) in the diagram) turns ON or
OFF.
When SW2, connected to input bit
I1, turns ON or OFF, I1 (indicated
by (2) in the diagram) turns ON or
OFF.
If the ladder program is executed
in RUN mode and SW1 turns ON,
input bit I0 turns ON, output bit Q0
turns ON, and the output contact
(indicated by (3) in the diagram)
turns ON.
When the output contact (3) turns
ON, the load connected to output
terminal Q0 turns ON.
Z211-E1-02A.book Page 60 Monday, May 21, 2007 12:38 PM
Mum 15 STOP “000000 a: mum: Man: 15 star? I = 000000 a: [man an I47
61
Creating Ladder Programs Section 3-3
Press the OK Button to switch to the Menu
Screen and select PROGRAM.
Select DELETE PROG.
If a password has been set, a Password
Input Screen will be displayed. Input the
password.
Press the OK Button to display a
confirmation message, and then select YES.
When the Delete Program operation has
been completed, the display will return to the
original screen.
3-3-3 Writing Ladder Programs
Press the OK Button to switch to the Menu
Screen and select PROGRAM.
Select EDIT PROG.
Press the OK Button to display a
confirmation message, and then select YES.
STOP mode
display
PROGRAM
RUN
PARAMETER
SET CLOCK
EDIT PROG
DELETE PROG
DELETE PROG
DELETE?
NO
YES
EDIT PROG
DELETE PROG
STOP mode
display
PROGRAM
RUN
PARAMETER
SET CLOCK
EDIT PROG
DELETE PROG
EDIT
EDIT?
NO
YES
▲ ▼
Press the OK Button to switch to the Ladder
Program Edit Screen.
Indicates the line number in the ladder
program at the cursor position (line 0 in this
example.)
Cursor flashing in a reversed state.
Z211-E1-02A.book Page 61 Monday, May 21, 2007 12:38 PM
Operations in the Ladder Program Edit Saree DDDDDDDDD EU I] DI] DI] DUDE DDDDDDDDD }DDD I] DI] DI] UDDD
62
Creating Ladder Programs Section 3-3
Operations in the Ladder Program Edit Screen
Two lines of circuits can be displayed at one
time on the Ladder Program Edit Screen.
Up to 96 lines can be written.
Up to 3 inputs and 1 output can be written
per line.
Example ladder diagram
Connection
line
Bit address
Bit type
Ladder program line number at cursor
Additional output functions
Bit address
Bit type
N.C. input
N.O. input
Displayed when there are more lines. Use the Down Button to
display the lines.
Displayed when there are more lines. Use the Up Button to
display the lines.
Input write positions
Bit type/bit number
Input symbol (N.O./N.C) or connection line
Bit/timer/counter/
output write positions
Connection line write positions
Positions for Writing Inputs, Outputs, and Connection Lines
Z211-E1-02A.book Page 62 Monday, May 21, 2007 12:38 PM
WrI ng Inputs [a BB u 19 an I! I [a [a an n u [a [a an n u [a u an n 11 BB H
63
Creating Ladder Programs Section 3-3
3-3-3-1 Writing an Input for I0
Press the OK Button to display the initial
write setting (N.O input I0) and move the
flashing cursor to the bit type I position. Use
the Up/Down Buttons to select the bit type.
Use the Right Button to move the flashing
cursor to the 0 position and then use the Up/
Down Buttons to select the bit address.
Press the OK Button twice to complete the
write operation for input I0. The highlighted
cursor will move the next input position.
3-3-3-2 Writing Serial Input I1
Press the OK Button to display the N.O. input
and input I0 again.
Press the ALT Button to switch to a N.C.
input.
(Press the ALT Button again to switch back
to a N.O. input.)
Use the Right Button to move the flashing
cursor to the bit address position and use the
Up Button to change the bit address to 1.
Press the OK Button to move the highlighted
cursor to the next input position. A
connection will automatically be created
between input I0 and the next input.
Writing Inputs
Input Symbol Configuration
Bit type
Bit number
Input symbols ( N.O. input;
N.C. input.)
Z211-E1-02A.book Page 63 Monday, May 21, 2007 12:38 PM
64
Creating Ladder Programs Section 3-3
Memory Areas
Note 1. I0 to Ib (12 points) for CPU Units with 20
I/O points.
2. Q0 to Q7 (8 points) for CPU Units with 20
I/O points. Q3 of CPU Units with
communications cannot be output
externally.
3. Can be used only when Expansion I/O
Units are connected.
4. Cannot be used for LED-type CPU Units.
Timers, Counters, and Analog Comparators
Note 1. Can be used only when LCD-type CPU
Units are used.
2. Can be used only with CPU Units with
DC power supply (PNP connection).
Symbol Name Bit type and number
I CPU Unit input bits I0 to I5 (6 points) (See note 1.)
Q CPU Unit output bits Q0 to Q3 (4 points) (See note 2.)
X Expansion I/O Unit input
bits
X0 to Xb (12 points) (See note 3.)
Y Expansion I/O Unit output
bits
Y0 to Yb (12 points) (See note 3.)
M Work bits M0 to Mf (16 points)
H Holding bits H0 to Hf (16 points)
B Button switches B0 to B7 (8 points) (See note 4.)
Symbol Name Bit type and number
T Timers T0 to Tf (16 timers)
# Holding timers #0 to #7 (8 timers)
@ Weekly timers @0 to @f (16 timers) (See note
1.)
*Calendar timers *0 to *f (16 timers) (See note
1.)
C Counters C0 to Cf (16 counters)
F 8-Digit counter F0 (1 counter)
A Analog comparators A0 to A3 (4 comparators)
(See note 2.)
P Comparators P0 to Pf (16 comparators)
G 8-Digit comparators G0 to G3 (4 comparators)
Z211-E1-02A.book Page 64 Monday, May 21, 2007 12:38 PM
Writing Outputs
65
Creating Ladder Programs Section 3-3
Press the ALT Button to enable drawing a
connection line. The left arrow cursor will
flash.
Press the Right Button to draw a connection
line to the output.
Writing Outputs
Output Configuration
Memory Areas
Note 1. Q0 to Q7 (8 points) for CPU Units with 20
I/O points. Q3 of CPU Units with
communications cannot be output
externally.
2. Can be used only when Expansion I/O
Units are connected.
Additional Functions for Output Bits
Bit number
Bit type
Additional functions
Symbol Name Bit type and number
Q CPU Unit output bits Q0 to Q3 (4 outputs) (See note 1.)
Y Expansion I/O Unit output
bits
Y0 to Yb (12 outputs) (See note 2.)
M Work bits M0 to Mf (16 bits)
H Holding bits H0 to Hf (16 bits)
Symbol Name
[ Normal operation
S Set operation
R Reset operation
A Alternate operation
Z211-E1-02A.book Page 65 Monday, May 21, 2007 12:38 PM
c Ia 1 1 ea n——u-——-- I IE I 1 BE u—-u-——--ma
66
Creating Ladder Programs Section 3-3
Additional Functions for Bit Outputs
Timers, Holding Timers, Counters, and Display Output Configurations
Timers, Counters, and Display Bits
Note Cannot be used for LED-type CPU Units.
3-3-3-3 Writing an Output to Q0
Press the Right Button again to draw a line
to the output and move the highlighted cursor
to the output write position.
Press the OK Button to display the initial
value for the output (normal output/Q0) and
move the flashing cursor to the bit type Q
position.
Use the Up/Down Buttons to select the bit
type. Use the Right/Left Buttons to move the
flashing cursor and use the Up/Down
Buttons to select additional functions or
select the bit address.
[: Normal output S: Set R: Reset A: Alternate
Q0 turns ON and OFF
when execution
condition I0 turns ON
and OFF.
Q1 turns ON and stays
ON when execution
condition I1 turns ON
once.
Q2 is forced OFF
when execution
condition I2 turns ON.
Q3 alternates between
On and OFF each time
execution condition I3
turns ON.
I0
Q0
I1
Q1
I2
Q2
I3
Q3
Timer/counter/display number
Timer/counter/display type
Timer/counter output type
Symbol Name Type and number Output type
T Timer T0 to Tf (16 timers) T: Trigger
R: Reset
# Holding timer #0 to #7 (8 timers)
C Counter C0 to Cf (16 counters) C: Count
D: Count direction
R: Reset
F 8-Digit
counter
f0 (1 counter)
D Display bit D0 to Df (16 bits)
(See note.)
D
Z211-E1-02A.book Page 66 Monday, May 21, 2007 12:38 PM
Drawmg Connection es Ia n a) "nun—"ma an n (-
67
Creating Ladder Programs Section 3-3
Press the OK Button twice to complete
writing output Q0. The highlighted cursor will
move to the input at the beginning of the next
line.
3-3-3-4 Writing a Parallel Input for Q0
Press the OK Button to display input I0 and
move the flashing cursor to the bit type I
position.
Press the Up Button to select Q (a CPU Unit
output bit).
Press the OK Button twice to complete
writing the parallel input for Q0. The
highlighted cursor will move to the next input.
3-3-3-5 Drawing Connection Lines for OR Circuits
Drawing Connection Lines
Press the ALT Button when the highlighted
cursor is at the input write position to change
the cursor to a left flashing arrow and enable
connection lines to be drawn. Move the left
arrow the position for drawing the connection
line and press the Up, Down, Left, and
Right Buttons to draw connection lines
vertically and horizontally.
It will not be possible to draw connection
lines, if a written input/output bit has been
reached, if the beginning or end of the line
has been reached, or if the OK and ESC
Buttons are pressed.
Press the ALT Button to enable drawing
connection lines.
Horizontal connection lines
Vertical connection lines
Intersecting lines
Z211-E1-02A.book Page 67 Monday, May 21, 2007 12:38 PM
II I l IZI up». I n dig—Ga ma m M: H] II-om-I—o
68
Creating Ladder Programs Section 3-3
Press the Up Button to simultaneously draw a
connection line both vertically and horizontally.
The cross (+) indicates an intersection.
Press the OK Button to complete writing the
connection line and change to a highlighted
flashing cursor.
Press the ESC Button to complete the write
operation.
Press the ESC Button again to return to the
Menu Screen.
Precautions for Correct Use
Always press the ESC Button and return to the Menu Screen after
creating a program. If you do not press the ESC Button and return to
the Menu Screen before turning OFF the power, the program and
settings will be deleted.
Do not input a program where the connection lines double back
on themselves. The program will not operate properly if such
lines are drawn.
Do not use the same output bit address for more than one output
from the program. The resulting operation may not be as
expected.
[Q0
[Q0
I0
I1
Here, the final status of Q0 will be controlled
by I1, not by I0.
Z211-E1-02A.book Page 68 Monday, May 21, 2007 12:38 PM
Procedure for Checking Operation Method lor Checking Oper n
69
Confirming Ladder Program Operation Section 3-4
3-4 Confirming Ladder Program Operation
Always check the ladder program operation before using the ZEN.
Precautions for Safe Use
Before turning ON the power, check that all wiring has been
performed correctly.
For systems with loads connected to the outputs that may cause
serious injury or damage to equipment if operation is incorrect,
remove the output wiring before performing trial operation.
Always ensure safety in the vicinity before switching the
operating mode (RUN/STOP).
Procedure for Checking Operation
Checks Before Turning ON the Power
1. Check that the ZEN is mounted and wired correctly.
2. Check that the operation of the ZEN will not have a negative
impact on the system. Check for any dangers.
3. Turn ON the power supply to the ZEN.
The ZEN will start in RUN Mode when power is turned ON.
Operation Checks
4. Turn each input ON and OFF and check that the program is
operating correctly.
5. Adjust any problems.
Method for Checking Operation
Check the operation by the flashing input and output displays on
the Main Screen (not including LED-type CPU Units).
Check the operation by using the Ladder Program Monitor (not
including LED-type CPU Units).
Connect the ZEN Support Software and check operation using
the monitor function. Refer to the operation manual for the ZEN
Support Software.
Z211-E1-02A.book Page 69 Monday, May 21, 2007 12:38 PM
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70
Confirming Ladder Program Operation Section 3-4
Checking Operation
Changing Operating Mode
Press the OK Button to display the Menu
Screen and press the Down Button to move
the flashing cursor to RUN.
Press the OK Button to switch from STOP
mode to RUN mode.
PROGRAM
RUN
PARAMETER
SET CLOCK
MONITOR
STOP
PARAMETER
SET CLOCK
RUN
I0 I1
I0 I1
I0 I1
Checking Operations on
Main Screen
Press the ESC
Button to switch
to the Main
Screen.
Checking Operations Using
Ladder Program Monitor
MONITOR
STOP
PARAMETER
SET CLOCK
RUN
Select Monitor
in RUN mode.
Press the OK
Button to switch
to the Ladder
Program
Monitoring
Screen.
Turn I0 ON. Q0 will turn ON when
I0 turns ON.
I0 ON.
Q0 ON at the same
time.
Q0 turns ON at
the same time
when I0 turns
ON. When the
bit is ON, the
vertical and
horizontal lines
are thick.
Turn I0 OFF. Q0 remains ON
even if I0 turns OFF.
I0 OFF.
Q0 ON.
Turn I1 ON. Q0 will turn OFF when
I1 is turned ON.
I1 ON.
Q0 OFF.
RUN
RUN
RUN
RUN
RUN
RUN
RUN
RUN
Z211-E1-02A.book Page 70 Monday, May 21, 2007 12:38 PM
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71
Correcting Ladder Programs Section 3-5
3-5 Correcting Ladder Programs
3-5-1 Changing Inputs
Change contact Q0 to M1.
Press the OK Button to change the
highlighted cursor to a flashing cursor and
move the flashing cursor to the bit type
position.
Use the Up/Down Buttons to select M.
Press the Right Button to move the flashing
cursor to the bit address position. Use the
Up/Down Buttons to change the bit address
from 0 to 1.
Press the OK Button to complete the setting
change.
3-5-2 Changing Additional Bit Output Functions
Change the additional function for the input
for Q0 to S (Set).
Press the OK Button to change the
highlighted cursor to a flashing cursor.
Press the Left Button to move the flashing
cursor to the additional function position.
Press the Up Button twice to change the
additional function from [ to S.
Press the OK Button to complete the
change.
Move the
highlighted cursor
to the input to be
changed.
Move the
highlighted cursor
to the output to be
changed.
Z211-E1-02A.book Page 71 Monday, May 21, 2007 12:38 PM
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72
Correcting Ladder Programs Section 3-5
3-5-3 Deleting Inputs, Outputs, and Connection Lines
Move the highlighted cursor to the position of
the input, output, or connection line to be
deleted and press the DEL Button.
Example: Deleting Serial Input M3
Press the DEL Button to delete the input and
the related connecting lines at the same
time.
Example: Deleting Vertical Connecting Lines
Move the highlighted cursor to the input
position to the right of the vertical line to be
deleted. Press the ALT Button to enable
drawing connection lines. The highlighted
cursor will change to a left arrow cursor.
Press the DEL Button to delete the vertical
connection line.
3-5-4 Inserting Lines
To insert a blank line, move the highlighted cursor to the beginning of the line where
the blank line is to be inserted and press the ALT Button.
Press the ALT Button to insert one blank line.
To add OR programming, inputs can be added between parallel inputs. Move the
highlighted cursor to the beginning of the line where the input is to be inserted.
Move the high-
lighted cursor to the
position of the input
to be deleted.
Move the highlighted
cursor to the beginning
of the next line (the line
that will be after the
inserted line.)
A circuit will be added here.
Blank line
Move the highlighted
cursor to the beginning
of the next line (the line
that will be after the
inserted line.)
An input will be added here.
Z211-E1-02A.book Page 72 Monday, May 21, 2007 12:38 PM
a) Hulk—"ma Ia n I I I u-+ Ia n a) l!-rM--—--[HB Ia 11 ¢
73
Correcting Ladder Programs Section 3-5
Press the ALT Button to reserve a 1-line
space between the parallel inputs.
The vertical connection lines will be
automatically extended.
Note A blank line cannot be inserted if an input or connection line is
written in the last line (the 96th line).
3-5-5 Deleting Blank Lines
To delete a blank line, move the highlighted
cursor to the input position at the beginning
of the line to be deleted and press the DEL
Button.
Press the DEL Button to delete one blank
line. All following lines will move up one.
Note A line must be blank to be deleted, i.e., lines containing inputs
and outputs cannot be deleted.
Blank line
Move the high-
lighted cursor to the
beginning of the
line to be deleted. This line will be deleted.
Z211-E1-02A.book Page 73 Monday, May 21, 2007 12:38 PM
Timer Usage and Operation
74
Using Timers (T) and Holding Timers (#) Section 3-6
3-6 Using Timers (T) and Holding Timers (#)
The ZEN has 16 built-in timers and 8 built-in holding timers.
Timer Usage and Operation
Timers The present value being timed will be reset when the timer switches from RUN
mode to STOP mode or the power is turned OFF.
There are five uses of the timer available, depending on the additional function
selection.
Holding timers The present value being timed is held even when the timer switches from RUN
mode to STOP mode or the power is turned OFF. The time will continue when
the trigger input turns ON again. The ON status of the timer bit is also held
when the timer times out.
Only ON-delay holding timers are supported.
X: ON delay timer
Turns ON after a set interval after the trigger
input has turned ON.
Basic Operation
Main Applications
Time lag operations
: OFF delay timer
Stays ON while the trigger input is ON and turns
OFF after a set interval after the trigger input
has turned OFF.
Basic Operation
Main Applications
Useful for timing lighting and ventilating fans.
Reset input
Trigger input
Setting
Present
value
Timer bit
0Trigger input
Time
Output
Reset input
Trigger input
Setting
Present
value
Timer bit
0
Trigger input
Time
Output
Z211-E1-02A.book Page 74 Monday, May 21, 2007 12:38 PM
H' ‘ Holdin Timer Usa eand 0 eralion
75
Using Timers (T) and Holding Timers (#) Section 3-6
Holding Timer Usage and Operation
O: One-shot pulse timer
Remains ON for a set interval when the trigger
input turns ON.
Basic Operation
Main Applications
Useful for fixed-quantity operation when
operation is always required for the same
period.
F: Flashing pulse timer
Turns ON and OFF repeatedly at set intervals
while the trigger input is ON.
Basic Operation
Main Applications
Useful as an alarm circuit for flashing
emergency lighting or buzzers.
W: Twin timer
Turns ON and OFF repeatedly at set intervals
while the trigger input is ON. The ON time and
OFF time can be set independently.
Basic Operation
Main Applications
Convenient for intermittent operation, such as
that used for fans.
X: ON delay timer only
Turns ON after a set interval after the trigger
input has turned ON. The present value is held
while the trigger input is OFF.
Main applications
When operation is to be continued even during
momentary power interruptions and longer
power interruptions. Also used for time-lag
operation.
Reset input
Trigger input
Setting
Present
value
Timer bit
0Trigger input
Time
Output
Reset input
Trigger input
Setting
Present
value
Timer bit
0Trigger input
Time
Output
Time Time Tim
Reset input
Trigger input
Present
value
Timer bit
0
ON time
OFF time
Trigger input
ON
time
Output
OFF
time
ON
time
OFF
time
Reset input
Trigger input
Setting
Present
value
Timer bit
0
Z211-E1-02A.book Page 75 Monday, May 21, 2007 12:38 PM
All Timers Except Twin Timers (X, I, O F) 4,7 T6 X S R free RES BB. 914» a Twin Timers (W! 1 r 66
76
Using Timers (T) and Holding Timers (#) Section 3-6
3-6-1 Settings in the Ladder Program Edit Screen
Timer triggers, reset outputs, and timer inputs are drawn on the Ladder
Program Edit Screen. Settings are made on the Parameter Settings
Screen.
3-6-2 Settings in the Parameter Settings Screen
All Timers Except Twin Timers (X, , O, F)
Twin Timers (W)
Timer address Timers: T0 to Tf (16 timers)/ Holding Timers: #0 to #7 (8 timers)
Trigger input T (TRG) Controls the timer trigger output. Triggers the timer when the trigger
input turns ON.
Reset input R (RES) Controls the timer reset output. When the reset input turns ON, the
present value is reset to 0 and the timer bit turns OFF. Trigger inputs
are not accepted while the reset input is ON.
Timer bit Turns ON according to the timer type.
Timer number
Trigger specification
Timer trigger output
Timer reset output
Reset specification
Time up output
Trigger input
Reset input
Timer address
Timer bit
Timer type Time unit
Monitor enabled/disabled
Set value
Timer address
▲ ▼
▲ ▼
TO W M:S A
ON-TIMER
TRG
RES 02.10
TO W H:M A
OFF-TIMER
TRG
RES 01.30
Timer type Time unit for ON time
Monitor enabled/disabled
Set value
Timer address
ON time
Time unit for OFF time
OFF time
to switch the display.
Z211-E1-02A.book Page 76 Monday, May 21, 2007 12:38 PM
All Timers Except Twin Timers fl ,7 0 TanVs a man afifiaofik nzsfo f15.99 o if 0 Twin Timers o ' 0 <1 0="" 00="" '="" ,i="" o="" ‘1="">
77
Using Timers (T) and Holding Timers (#) Section 3-6
Timer Types
Time Units and Settings
Monitor Enabled or Disabled
3-6-3 Parameter Monitor Screen Display
All Timers Except Twin Timers
Twin Timers
X ON delay
OFF delay
O One-shot pulse
F Flashing pulse
W Twin
S 00.01 to 99.99 s (in 0.01-s units)
M:S 00 min 01 s to 99 min 59 s (in minutes and seconds)
H:M 00 h 01 m to 99 h 59 m (in hours and minutes)
A Operating parameters can be monitored and settings changed.
D Operating parameters cannot be monitored nor settings changed.
Trigger input status
( : OFF/: ON)
Reset input status
(: OFF/: ON)
Timer present value
Timer bit status
( : OFF/: ON)
Timer setting
RUN
TO W M:S A
ON-TIMER
TRGo 00.00o
RESo 02.10
TO W H:M A
OFF-TIMER
TRGo 00.00o
RESo 01.13
▲ ▼
▲ ▼
to switch the display.
Trigger input status
(: OFF/: ON)
Reset input status
( : OFF/: ON)
ON timer present value
Timer bit status ( : OFF/: ON)
ON timer setting
OFF timer present value
Timer bit status ( : OFF/: ON)
OFF timer setting
Z211-E1-02A.book Page 77 Monday, May 21, 2007 12:38 PM
Operation
78
Using Counters (C) and the 8-Digit Counter (F) Section 3-7
3-7 Using Counters (C) and the 8-Digit Counter (F)
Up to 16 counters and one 8-digit counter can be used in incremental or
decremental mode. The present value for counters and the status of
counter bits (ON/OFF) are held even when the operating mode is
changed or there is a power interruption.
Operation
Counter bits turn ON when the count value (present value) exceeds the
setting (present value set value). The count returns to 0 and the bits
turns OFF when the reset input turns ON. Count inputs are not accepted
while the reset input is ON.
3-7-1 Settings in the Ladder Program Edit Screen
Outputs for the counter input, counter direction, and counter reset are
written in the Ladder Program Edit Screen. Counter input conditions can
also be written. Settings are made in the Parameter Settings Screen.
Counter address Counter C0 to Cf (16 points)
8-Digit Counter F0 (1 point)
Counter input C (CNT) Increments (or decrements) each time the
count input turns ON.
Counter
direction
specification
input
D (DIR) Switches between incremental and
decremental counting.
OFF: Incremental
ON: Decremental
I1 (DIR)
I0 (CNT)
I3 (RES)
0
Set value
Counter bit
Present value
Counter address
Count input specification
Count input
Counter direction
specification input
Reset input
Reset specification
Counter address
Counter bit
Output to counter input
Counter direction specification output
Counter direction specification
Counter reset output
Counter bit output
Z211-E1-02A.book Page 78 Monday, May 21, 2007 12:38 PM
Counters (Cl E 15994 R Iglt Counter (F) N H R .7 is 12345579., 3“?
79
Using Counters (C) and the 8-Digit Counter (F) Section 3-7
3-7-2 Settings in the Parameter Settings Screen
Counters (C)
The speed of the counter depends on whether a filter is used. Refer
to page 104.
8-Digit Counter (F)
Note Counting Speed
The maximum counting speed of the 8-digit counter is 150 Hz
regardless of whether an input filter is used. The maximum ladder
program capacity, however, may be less than 150 Hz. Calculate
the cycle time (refer to page 130) and confirm the maximum
Reset input R (RES) When the reset input turns ON, the present
value returns to 0 and the counter bit turns
OFF. Count inputs are not accepted while the
reset input is ON.
Count input Turns ON when the counter has counted out (PV SV)
Set value 0001 to 9999 (4 decimal digits) times
Monitor enabled/
disabled
A Operating parameters can be monitored and
settings changed.
D Operating parameters cannot be monitored or
settings changed.
Monitor enabled/disabled
Set value
Counter address
Set value 00000001 to 99999999 (4 decimal digits) times
Counter speed H High speed (150 Hz, see note.) (I0 for CPU
Units with DC power supplies only)
L Low speed (Depends on whether a filter is
used. Refer to page 104.)
Monitor enabled/
disabled
A Operating parameters can be monitored and
settings changed.
D Operating parameters cannot be monitored or
settings changed.
Monitor enabled/disabled
Set value
Counter address
Counter speed
Z211-E1-02A.book Page 79 Monday, May 21, 2007 12:38 PM
Counters C F m n u o C t
80
Using Counters (C) and the 8-Digit Counter (F) Section 3-7
counting speed using the following formula. The calculation
serves as a guide only, so allow a suitable margin in the actual
machine.
Maximum counting speed: 1,000,000/(cycle time in µs × 2.2) Hz
Note Even if the calculated maximum counting speed exceeds
150 Hz using this formula, the maximum counting speed
will be 150 Hz.
3-7-3 Parameter Monitor Screen Display
Counters (C)
8-Digit Counter (F)
Note 1. To reset the counter present value and counter bit status (ON/
OFF) when at power interruptions or when the operating mode is
changed, create a counter reset circuit when you first execute the
program. An example is shown below.
2. If the counter input and counter direction are input
simultaneously, place the output for the counter direction before
the output for the counter input in the program.
Counter bit status ( : OFF/: ON)
Count input status
(: OFF/: ON)
Counter setting
Counter present value
Reset input status
( : OFF/: ON)
Counter direction specification
input status ( : OFF/: ON)
RUN
Counter bit status ( : OFF/: ON)
Count input status
( : OFF/: ON)
Counter setting
Counter present value
Reset input status
( : OFF/: ON)
Counter direction
specification input status
(: OFF/: ON)
Counter reset
output
Counter direction
specification output
Output to counter input
Z211-E1-02A.book Page 80 Monday, May 21, 2007 12:38 PM
Weekl TimerO eration Standard LCD-t e Econom -t e and Communications-t eC UUnits
81
Using Weekly Timers (@) Section 3-8
3-8 Using Weekly Ti