Omron SYSMAC CS1W-CLK13 User manual

OPERATION MANUAL
Cat. No. W370-E1-06
SYSMAC
CS1W-CLK13 (H-PCF Cable)
CS1W-CLK12-V1 (H-PCF Cable)
CVM1-CLK12 (H-PCF Cable)
CS1W-CLK53 (GI Cable)
CS1W-CLK52-V1 (GI Cable)
CVM1-CLK52 (GI Cable)
Optical Ring Controller Link Units

CS1W-CLK13 (H-PCF Cable)
CS1W-CLK12-V1 (H-PCF Cable)
CVM1-CLK12 (H-PCF Cable)
CS1W-CLK53 (GI Cable)
CS1W-CLK52-V1 (GI Cable)
CVM1-CLK52 (GI Cable)
Optical Ring Controller Link Units
Operation Manual
Revised September 2007

iv

v
Notice:
OMRON products are manufactured for use according to proper procedures by a qualified operator
and only for the purposes described in this manual.
The following conventions are used to indicate and classify precautions in this manual. Always heed
the information provided with them. Failure to heed precautions can result in injury to people or dam-
age to property.
!DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. Additionally, there may be severe property damage.
!WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury. Additionally, there may be severe property damage.
!Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury, or property damage.
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.
The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means
“word” and is abbreviated “Wd” in documentation in this sense.
The abbreviation “PLC” means Programmable Controller. “PC” is used, however, in some Program-
ming Device displays to mean Programmable Controller.
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 opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.

vi
Unit Versions of CS-series Controller Link Units
Unit Versions
A “unit version” has been introduced to manage CS-series Controller Link Units according to differ-
ences in functionality accompanying upgrades.
Unit Version Notation on Products
The unit version code is provided on the nameplate of the CS-series Controller Link Units for which
unit versions are being managed. This system applies to Controller Link Units with unit version 1.2 or
later.
Confirming Unit Versions with Support Software
CX-Programmer version 5.0 or later can be used to confirm the unit version in the Unit Manufacturing
Information.
1,2,3... 1. In the I/O Table Window, right-click on the Controller Link Unit, and then select
Unit Manufacturing Information.
2. The following Unit Manufacturing Information Dialog Box will be displayed.
Example: In this Unit Manufacturing Information Dialog Box, unit version 1.2 is
displayed. Use this dialog box to confirm the unit version of the Controller Link
Unit that is connected online.
CS1W-CLK12-V1
CONTROLLER LINK UNIT
Lot No. 040801 0000 Ver.1.2
OMRON Corporation MADE IN JAPAN
Example: CS1W-CLK12-V1
CS-series Controller Link Unit
Nameplate
Unit version 1.
2
Indicates the unit version.

vii
Using the Unit Version Labels
Unit version labels are provided with the product. These labels can be attached to the front of previous
Controller Link Units to differentiate between Controller Link Units of different unit versions.
Unit Version Notation
The unit versions are indicated in this manual as follows:
Function Support by Unit Version
Note 1. Use the CX-Net in CX-Programmer version 5.0 or later to set a data link area
in which the number of send and receive words exceeds 12,000 words, or to
set data link tables that allocate the same area for Area 1 and Area 2.
2. Use the CX-Integrator Data Link Setting Tool version 3.2.1.1 or later to set data
link tables with more than 1,000 send words per node. For information on
checking the version number, refer to Checking the CX-Integrator Data Link
Setting Tool Version on page viii.
Unit Versions and Manufacturing Dates/Lot Numbers
Notation in product nameplate Notation in this manual Remarks
Ver.1.2 or later after the lot number CS-series Controller Link Units
with unit version 1.2 or later
Information for which no particular
version is specified applies to all
unit versions.
Blank after the lot number Pre-Ver. 1.2 CS-series Controller
Link Units
Functions Unit version 2.0 Unit version 1.2 Earlier version
(Pre-Ver. 1.2)
CS1W-CLK13
CS1W-CLK53
CS1W-CLK12-V1
CS1W-CLK52-V1
CS1W-CLK12-V1
CS1W-CLK52-V1
Maximum number of data link
words (data link area for sending/
receiving that is created for a sin-
gle node in a single CPU Unit)
20,000 max. (See note 1.) 12,000 max.
Number of send words per node
(total of area 1 and area 2)
4,000 words max.
(See note 2.)
1,000 words max.
Data Link Area The same area can be allocated for both Area
1 and Area 2.
The same area cannot
be allocated for both
Area 1 and Area 2.
Maximum number of Units con-
nected to a single CPU Unit
8 Units 4 Units
Number of error log records 64 records max. 39 records max.
Model Until July 2004 From August 2004 From September 2007
CS1W-CLK12-V1 Pre-Ver. 1.2 Unit version 1.2
(Lot No. 040801 and later)
CS1W-CLK52-V1
CS1W-CLK13 --- --- Unit version 2.0
CS1W-CLK53

viii
Checking the CX-Integrator Data Link Setting Tool Version
1,2,3... 1. Start the CX-Integrator and select Tool - Start Data Link.
2. In the Select Network Dialog Box, select 1 Controller Link and click the OK But-
ton.
3. The Data Link Table Setting Tool (Data Link Component) will start. Select Help
- About Datalink Component....

ix
4. The Version Dialog Box will be displayed. Check the Data Link Component ver-
sion number.
If CX-One version 2.0 or later Support Software is being used with an older ver-
sion of the Data Link Component, use the CX-One automatic update function
to upgrade to the latest version.
OMRON, 2000
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o
r
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o
f
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is con-
stantly 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.

x

xi
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
5 Applications Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
SECTION 1
Features and System Configuration . . . . . . . . . . . . . . . . . . . 1
1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Specifications and Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1-3 Selecting Communications Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1-4 Basic Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1-5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SECTION 2
Basic Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2-1 Data Links Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2-2 Message Service Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
SECTION 3
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3-1 Component Names and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3-2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
3-3 Optical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
SECTION 4
Preparations for Communications . . . . . . . . . . . . . . . . . . . . 75
4-1 CS-series Optical Ring Controller Link Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
4-2 CVM1 and CV-series Optical Ring Controller Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . 79
SECTION 5
Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
5-1 What Are Data Links? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5-2 Setting Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5-3 Starting and Stopping Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
5-4 Checking Data Link Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130

xii
TABLE OF CONTENTS
SECTION 6
Message Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
6-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
6-2 Selecting Communications Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
6-3 Using the Message Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154
6-4 FINS Commands and Responses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
6-5 Commands and Responses for Controller Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
6-6 Response Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
SECTION 7
Network Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
7-1 What is Network Interconnection? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
7-2 Remote Programming and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
7-3 Routing Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
7-4 Setting Routing Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
SECTION 8
Duplex Communications Units . . . . . . . . . . . . . . . . . . . . . . . 199
8-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
8-2 Duplex Unit System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
8-3 Procedure for Using Duplex Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
8-4 Precautions for Duplex Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
8-5 Switching Time for Duplex Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
8-6 Auxiliary Area Bits/Words and PLC Setup Settings Related to Duplex Communications Units 214
SECTION 9
Communications Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
9-1 Communications Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
9-2 Communications Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
9-3 Data Link I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
9-4 Message Delay Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
SECTION 10
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . . 235
10-1 Troubleshooting Using Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
10-2 Status Area and Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
10-3 Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
10-4 Troubleshooting Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
10-5 Locating and Correcting Cable Disconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
10-6 Troubleshooting for Duplex Communications Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
10-7 Cleaning and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
10-8 Handling Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

xiii
TABLE OF CONTENTS
SECTION 11
Adding Nodes and Editing Active Data Link Tables. . . . . . 299
11-1 Adding Nodes in Token-ring Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
11-2 Changing the Data Link Tables with Active Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Appendices
A Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
B Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
C CS-series Optical Bus Controller Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
D Handling and Using GI Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341

xiv
TABLE OF CONTENTS

xv
About this Manual:
This manual describes the installation, setup, and operation of the CS1W-CLK13, CS1W-CLK12-V1,
CVM1-CLK12, CS1W-CLK53, CS1W-CLK52-V1, and CVM1-CLK52 Optical Ring Controller Link Units
for CS-series, CVM1, and CV-series PLCs and includes the sections described below. The Controller
Link Units are used to connect these PLCs to an Optical Ring Controller Link Network. The following
three manuals are related to application of the Controller Link Network.
Please read this manual and related manuals carefully and be sure you understand the information
provided before attempting to install and operate a Controller Link Unit.
Precautions provides general precautions for using the Controller Link Units and related devices.
Section 1 provides basic information on Controller Link Networks, and gives the reader an overview of
what Controller Link Networks can do and how best to use them.
Section 2 describes the basic procedures for using the Controller Link Unit. The settings required for
each of the functions are also explained briefly. For more details, refer to the subsequent sections on
individual functions.
Section 3 explains how to install a Controller Link Unit onto a CPU Backplane and how to wire the
Controller Link Network.
Section 4 describes the settings required for starting communications. These basic settings are
required both for data links and the message service. Carry out the settings described here before
turning ON power to the Controller Link Unit.
Section 5 describes how to use data links in a Controller Link Network. Refer to Section 2 Basic Pro-
cedures for an outline of data link application.
Section 6 explains how to use the message service provided by a Controller Link Unit. It also explains
the FINS commands and responses supported by Controller Link Units and those supported by CS-
series, CVM1 and CV-series PLCs.
Section 7 describes the methods used to connect multiple networks through CS-series, CVM1, and
CV-series PLCs. The section also describes remote programming and monitoring with Programming
Devices.
Section 8 describes the duplex function for Communications Units. It also provides setting methods
using the CX-Programmer and precautions for using Communications Units in duplex operation. Read
this section thoroughly and be sure that you understand the contents before using Communications
Units in duplex operation.
Section 9 explains details on Controller Link Network communications. Refer to this section for net-
work communications that require accurate communications timing.
Section 10 provides information on troubleshooting errors that occur during Controller Link Unit oper-
ation, as well as daily inspection, cleaning, and other maintenance procedures.
Name Contents Cat. No.
(suffixes omitted)
CS1W-CLK13, CS1W-CLK12-V1,
CVM1-CLK12, CS1W-CLK53,
CS1W-CLK52-V1, CVM1-CLK52
Optical Ring Controller Link Units
Operation Manual (this manual)
Installation, setup, and operating procedures for the
Optical Ring Controller Link Units. Controller Link
Units are used to connect C200HX/HG/HE CV-
series, and CS1-series PCs to a Controller Link Net-
work.
W370
3G8F5-CLK11-E, 3G8F5-CLK21-E
Controller Link Support Boards for
ISA Bus
Operation Manual
Installation, setup, and operating procedures for
Controller Link Support Boards for ISA bus connec-
tions. Controller Link Support Boards are used to
connect IBM PC/ATs or compatibles to a Controller
Link Network.
W307
C200HW-ZW3AT2-E-V2
Controller Link Support Software
Operation Manual
Installation and operating procedures for the Con-
troller Link Support Software. The Controller Link
Support Software enables manually set data links
and other procedures for a Controller Link Network.
W369
3G8F7-CLK13-E, 3G8F7-CLK12-
EV1, 3G8F7-CLK53-E, 3G8F7-
CLK52-EV1, 3G8F7-CLK23-E,
3G8F7-CLK21-EV1
Controller Link Support Boards for
PCI Bus
Operation Manual
Operating procedures for Controller Link Support
Boards for PCI bus connections. Controller Link
Support Boards are used to connect IBM PC/ATs or
compatibles to a Controller Link Network.
W383

xvi
Appendix A provides a list of standard OMRON products related to Controller Link Networks,
Appendix B provides easy reference to the CPU Unit memory areas related to Controller Link Net-
works, Appendix C provides information on CS-series Optical Bus Controller Link Units
(production to be discontinued), and Appendix D provides information on handling Optical Fiber
Cables.
!WARNING Failure to read and understand the information provided in this manual may result in per-
sonal injury or death, damage to the product, or product failure. Please read each section
in its entirety and be sure you understand the information provided in the section and
related sections before attempting any of the procedures or operations given.

xvii
PRECAUTIONS
This section provides general precautions for using the Controller Link Unit and related devices.
The information contained in this section is important for the safe and reliable application of the Controller
Link Unit. You must read this section and understand the information contained before attempting to set up or
operate a Controller Link Unit.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
4 Operating Environment Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
5 Applications Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
6 Conformance to EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

xviii
Intended Audience 1
1 Intended Audience
This manual is intended for the following personnel, who must also have
knowledge of electrical systems (an electrical engineer or the equivalent).
• Personnel in charge of installing FA systems.
• Personnel in charge of designing FA systems.
• Personnel in charge of managing FA systems and facilities.
2 General Precautions
The user must operate the product according to the performance specifica-
tions described in the operation manuals.
Before using the product under conditions which are not described in the
manual or applying the product to nuclear control systems, railroad systems,
aviation systems, vehicles, combustion systems, medical equipment, amuse-
ment machines, safety equipment, and other systems, machines, and equip-
ment that may have a serious influence on lives and property if used
improperly, consult your OMRON representative.
Make sure that the ratings and performance characteristics of the product are
sufficient for the systems, machines, and equipment, and be sure to provide
the systems, machines, and equipment with double safety mechanisms.
This manual provides information for programming and operating OMRON
PLCs and related devices. Be sure to read this manual before attempting to
use the software and keep this manual close at hand for reference during
operation.
!WARNING It is extremely important that a PLC and all PLC Units be used for the speci-
fied purpose and under the specified conditions, especially in applications that
can directly or indirectly affect human life. You must consult with your OMRON
representative before applying a PLC System to the above mentioned appli-
cations.
3 Safety Precautions
!WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing
so may result in electric shock.
!WARNING Do not touch any of the terminals or terminal blocks while the power is being
supplied. Doing so may result in electric shock.
!WARNING Provide safety measures in external circuits (i.e., not in the Programmable
Controller), including the following items, to ensure safety in the system if an
abnormality occurs due to malfunction of the PLC or another external factor
affecting the PLC operation. Not doing so may result in serious accidents.
• Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
• The PLC will turn OFF all outputs when its self-diagnosis function detects
any error or when a severe failure alarm (FALS) instruction is executed.
As a countermeasure for such errors, external safety measures must be
provided to ensure safety in the system.

xix
Operating Environment Precautions 4
• The PLC outputs may remain ON or OFF due to deposition or burning of
the output relays or destruction of the output transistors. As a counter-
measure for such problems, external safety measures must be provided
to ensure safety in the system.
• When the 24-V DC output (service power supply to the PLC) is over-
loaded or short-circuited, the voltage may drop and result in the outputs
being turned OFF. As a countermeasure for such problems, external
safety measures must be provided to ensure safety in the system.
!Caution Fail-safe measures must be taken by the customer to ensure safety in the
event of incorrect, missing, or abnormal signals caused by broken signal lines,
momentary power interruptions, or other causes.
!Caution Execute online edit only after confirming that no adverse effects will be
caused by extending the cycle time. Otherwise, the input signals may not be
readable.
!Caution Confirm safety at the destination node before transferring a program to
another node or changing contents of the I/O memory area. Doing either of
these without confirming safety may result in injury.
!Caution When connecting the PC to a personal computer or other peripheral device,
either ground the 0-V side of the PC or do not ground the PC at all. Although
some grounding methods short the 24-V side, as shown in the following dia-
gram, never do so with the PC.
4 Operating Environment Precautions
!Caution Do not operate the control system in the following locations:
• Locations subject to direct sunlight.
• Locations subject to temperatures or humidity outside the range specified
in the specifications.
• Locations subject to condensation as the result of severe changes in tem-
perature.
• Locations subject to corrosive or flammable gases.
• Locations subject to dust (especially iron dust) or salts.
• Locations subject to exposure to water, oil, or chemicals.
24 V
0 V 0 V 0 V
Controller Link Unit Peripheral device
FGFG
CPU Unit
INCORRECT Grounding: Shorting the 24-V side of the Power Supply
Backup power
supply
Non-isolated DC
power supply

xx
Applications Precautions 5
• Locations subject to shock or vibration.
!Caution Take appropriate and sufficient countermeasures when installing systems in
the following locations:
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.
!Caution When using a Controller Link Unit for utility systems (electric, gas, or water),
always use Optical Ring Mode with Duplex Controller Link Units, and provide
necessary fail-safe systems.
!Caution The operating environment of the PLC System can have a large effect on the
longevity and reliability of the system. Improper operating environments can
lead to malfunction, failure, and other unforeseeable problems with the PLC
System. Be sure that the operating environment is within the specified condi-
tions at installation and remains within the specified conditions during the life
of the system.
5 Applications Precautions
Observe the following precautions when using the Controller Link Unit.
!WARNING Failure to abide by the following precautions could lead to serious or possibly
fatal injury. Always heed these precautions.
• Always ground the system to 100 Ωor less when installing the system to
protect against electrical shock.
• Always turn OFF the power supply or the backup power supply to the PLC
or the computer before attempting any of the following. (Online Unit
replacement is possible for the CS1W-CLK13, CS1W-CLK12-V1, CS1W-
CLK53, and CS1W-CLK52-V1.) Performing any of the following with the
power supply turned ON may lead to electrical shock:
• Installing or removing the Controller Link Unit.
• Assembling the Units.
• Setting DIP or rotary switches.
• Connecting or disconnecting any cables or wiring.
• Connecting or disconnecting any connectors.
!Caution Failure to abide by the following precautions could lead to faulty operation or
the PLC or the system or could damage the PLC or PLC Units. Always heed
these precautions.
• Fail-safe measures must be taken by the customer to ensure safety in the
event of incorrect, missing, or abnormal signals caused by broken signal
lines, momentary power interruptions, or other causes.
• Interlock circuits, limit circuits, and similar safety measures in external cir-
cuits (i.e., not in the Programmable Controller) must be provided by the
customer.

xxi
Applications Precautions 5
• Always use the power supply voltages specified in the operation manuals.
An incorrect voltage may result in malfunction or burning.
• Take appropriate measures to ensure that the specified power with the
rated voltage and frequency is supplied. Be particularly careful in places
where the power supply is unstable. An incorrect power supply may result
in malfunction.
• Install external breakers and take other safety measures against short-cir-
cuiting in external wiring. Insufficient safety measures against short-cir-
cuiting may result in burning.
• Separate the Unit from equipment that generates strong high-frequency
noise.
• Separate the line ground terminal (LG) from the functional ground termi-
nal (GR) on the Power Supply Unit before performing withstand voltage
tests or insulation resistance tests. Not doing so may result in burning.
• Do not attempt to disassemble, repair, or modify any Units. Any attempt to
do so may result in malfunction, fire, or electric shock.
• Do not drop the Unit and do not subject it to abnormal vibration or shock
to the Unit.
• Be sure that all the mounting screws, terminal screws, and cable connec-
tor screws are tightened to the torque specified in the relevant manuals.
Incorrect tightening torque may result in malfunction.
• Leave the label attached to the Unit when wiring. Removing the label may
result in malfunction if foreign matter enters the Unit.
• Remove the label after the completion of wiring to ensure proper heat dis-
sipation. Leaving the label attached may result in malfunction.
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals. Connection of bare stranded wires may result in
burning.
• Double-check all wiring and switch settings before turning ON the power
supply. Incorrect wiring may result in burning.
• Wire all connections correctly.
• Mount Units only after checking terminal blocks and connectors com-
pletely.
• Be sure that the communications cable connectors and other items with
locking devices are properly locked into place. Improper locking may
result in malfunction.
• Use special packing box when transporting the Controller Link Unit. Han-
dle the product carefully so that no excessive vibration or impact is
applied to the product during transportation.
• Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected opera-
tion.
• Confirm that no adverse effect will occur in the system before attempting
any of the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PLC (including the setting of the
startup operating mode).
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Inappropriate settings in data link tables or routing tables can cause unex-
pected system operation. Always check table settings before starting