Omron CS1W-SLK11-21 - 06-2004 User manual

Cat. No. W367-E1-02
SYSMAC
CS1W-SLK11/21
SYSMAC LINK Units

CS1W-SLK11/21
SYSMAC LINK Units
Operation Manual
Revised June 2004

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.
!WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
!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.
OMRON, 1999
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.

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vii
TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xv
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
SECTION 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 SYSMAC LINK Unit Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-3 SYSMAC LINK Unit Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-4 Programming Devices and Support Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-5 Data Link Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1-6 Message Service Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SECTION 2
Unit Components and Switch Settings . . . . . . . . . . . . . . . . . 15
2-1 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2-2 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2-3 Mounting to Backplanes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2-4 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
SECTION 3
Basic Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3-1 SYSMAC LINK System Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3-2 Unit Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3-3 Setting Node Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3-4 Network Address Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
3-5 Network Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3-6 Memory Areas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SECTION 4
Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4-1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4-2 Data Link Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4-3 Data Link Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4-4 Data Link Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4-5 Creating Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4-6 Data Link Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4-7 Data Link Table Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

viii
TABLE OF CONTENTS
4-8 Controlling Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4-9 Data Link Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4-10 Data Link Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4-11 Data Link Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4-12 CX-Programmer Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
SECTION 5
Network Data Exchange. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
5-1 What is Network Interconnection? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
5-2 Routing Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
5-3 Routing Table Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
SECTION 6
Message Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
6-1 About Data Read/Write Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
6-2 PLC Network Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
6-3 FINS Command/Response Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
6-4 FINS Commands for SYSMAC LINK Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
SECTION 7
Remote Monitoring and Programming . . . . . . . . . . . . . . . . 123
7-1 Remote Programming and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
SECTION 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
8-1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
8-2 Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
8-3 Polling Node Backup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
8-4 Node Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
SECTION 9
Unit Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
9-1 Replacing the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
9-2 Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
9-3 Using the C200H-SLK21 or C1000H-SLK21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
SECTION 10
Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 149
10-1 Periodic Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
10-2 Handling Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
10-3 Tools and Equipment Needed for Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

ix
TABLE OF CONTENTS
Appendices
A Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
B Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
C Related Auxiliary Area Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
D CPU Bus Unit Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
E DM Area Allocations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

xi
About this Manual:
This manual describes the installation and operation of CS-series SYSMAC LINK Units and includes
the sections described below.
Please read this manual completely and be sure you understand the information provide before
attempting to install and operate a SYSMAC LINK System including CS-series SYSMAC LINK Units.
Section 1 Introduction introduces the features and operations of the SYSMAC LINK Units.
Section 2 Unit Components and Switch Settings describes the names and functions of the SYS-
MAC LINK Unit components and switch settings.
Section 3 Basic Communications describes the token bus method of communications used in SYS-
MAC LINK Systems, as well as the basic settings necessary for operation.
Section 4 Data Links describes the operation of data links, procedures required to establish data
links, and methods of monitoring data link operations.
Section 5 Network Data Exchange provides the details of the data exchange functions of the CS-
series PLCs via SYSMAC LINK Networks.
Section 6 Message Service describes the PLC ladder network instructions and FINS commands that
can be used to transfer data and control operation via a SYSMAC LINK System.
Section 7 Remote Monitoring and Programming provides information on remote programming and
monitoring.
Section 8 Troubleshooting provides information to help identify and correct errors that might occur.
Section 9 Unit Replacement describes the replacement procedure and provides cautions for Unit
replacement.
Section 10 Inspection and Maintenance contains information describing periodic inspections
required by the System.
Appendices contain information describing SYSMAC LINK Unit models, their dimensions, and area
allocations.
!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.

xiii
PRECAUTIONS
This section provides general precautions for using the CS-series SYSMAC LINK Units and related devices.
The information contained in this section is important for the safe and reliable application of the CS-series
SYSMAC LINK Units. You must read this section and understand the information contained before attempting
to set up or operate a SYSMAC LINK System.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
4 Operating Environment Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
6 Conformance to EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
6-1 Applicable Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
6-2 Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
6-3 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

xiv
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 the Unit. Be
sure to read this manual before attempting to use the Unit and keep this man-
ual 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 Do not attempt to disassemble, repair, or modify any Units. Any attempt to do
so may result in malfunction, fire, or electric shock.
!WARNING Provide safety measures in external circuits (i.e., not in the Programmable
Controller), including the following items, in order to ensure safety in the sys-
tem if an abnormality occurs due to malfunction of the PLC or another exter-
nal 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.

xv
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-VDC output (service power supply to the PLC) is overloaded
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 Confirm safety at the destination node before transferring a program to
another node or changing the I/O memory area. Doing either of these without
confirming safety may result in injury.
4 Operating Environment Precautions
!Caution Do not operate the control system in the following places:
• 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.
• 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.
5 Application Precautions
Observe the following precautions when using the SYSMAC 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. Performing any of
the following with the power supply turned ON may lead to electrical
shock:
• Installing or removing the SYSMAC LINK Unit.
• Mounting or dismounting Power Supply Units, I/O Units, CPU Units, In-
ner Boards, or any other Units.
• Assembling the Units.
• Setting DIP or rotary switches.

xvi
Application Precautions 5
• 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.
• 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.
• Disconnect the functional ground terminal when performing withstand
voltage tests. Not disconnecting the functional ground terminal 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.
• 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 SYSMAC 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.
• Observe the following precautions when wiring the communications cable
or backup power supply cables.
• Separate the cables from the power lines or high-tension lines.
• Do not bend the cables beyond their natural bending radius.
• Do not pull on the cables.

xvii
Conformance to EC Directives 6
• Do not place heavy objects on top of the cables.
• Route cables inside conduits.
• Before touching the Unit, be sure to first touch a grounded metallic object
in order to discharge any static build-up.
6 Conformance to EC Directives
6-1 Applicable Directives
•EMCDirectives
6-2 Concepts
EMC Directives
OMRON devices that comply with EC Directives conform to the related EMC
standards so that they can be more easily built into other devices or
machines. The actual products have been checked for conformity to EMC
standards (see the following note). Whether the products conform to the stan-
dards 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 Direc-
tives will vary depending on the configuration, wiring, and other conditions of
the equipment or control panel in which the OMRON devices are installed.
The customer must, therefore, perform final checks to confirm that devices
and the overall machine conform to EMC standards.
Note Applicable EMC (Electromagnetic Compatibility) standards are as follows:
EMS (Electromagnetic Susceptibility): EN50082-2
EMI (Electromagnetic Interference): EN61000-6-2
6-3 Conformance to EC Directives
The CS1W-SLK11 and CS1W-SLK21 SYSMAC LINK Units comply with EC
Directives. To ensure that the machine or device in which these SYSMAC
LINK Units are used complies with EC directives, the SYSMAC LINK Units
must be installed as follows:
1,2,3... 1. In order to conform with EC Directives, the SYSMAC LINK Units must be
installed within a control panel. Use an SA20-712 (made by NITTO ELEC-
TRIC WORKS) or a similar model.
2. Reinforced insulation or double insulation must be used for the DC power
supplies used for the communications and I/O power supplies.
3. SYSMAC LINK Units complying with EC Directives also conform to the
Common Emission Standard (EN50081-2). When a SYSMAC LINK Unit is
built into a machine, however, noise can be generated by switching devic-
es using relay outputs and cause the overall machine to fail to meet the
Standards, particularly with radiated emission for 10-m regulations. The
customer must, therefore, take measures to ensure and perform final
checks to confirm that devices and the overall machine conform to EMC
standards.

1
SECTION 1
Introduction
This section introduces the features and operations of the SYSMAC LINK Units.
1-1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 SYSMAC LINK Unit Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-2-1 Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-2-2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-3 SYSMAC LINK Unit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-3-1 Basic Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-3-2 Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-3-3 Network Data Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-3-4 Message Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-3-5 Remote Programming and Monitoring . . . . . . . . . . . . . . . . . . . . . . 8
1-3-6 RAS Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-4 Programming Devices and Support Software . . . . . . . . . . . . . . . . . . . . . . . . 8
1-4-1 Basic Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-4-2 CX-Programmer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-5 Data Link Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1-5-1 Manually Setting Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1-5-2 Automatically Setting Data Links . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1-6 Message Service Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2
Overview Section 1-1
1-1 Overview
The SYSMAC LINK is an FA network that can send and receive large data
packets flexibly and easily among the OMRON CS-series, C200HX/HG/HE,
CVM1, CV-series, C1000H, C1000HF, C2000H, and CQM1H-series Program-
mable Controllers (PLCs), as well as IBM PC/AT or compatible computers.
The SYSMAC LINK supports data links that enable data sharing and a mes-
sage service that enables sending and receiving data when required. Data
link words can be freely set to create a flexible data link system and effectively
use memory areas.
The network is connected using coaxial cable or optical fiber cable.
Coaxial System (Coaxial Cable)
Optical System (Optical Fiber Cable)
Internetwork Connections Communications across bridges or gateways can include up to three net-
works, including the local network. A CS-series, CVM1, or CV-series PLC can
be used as the bridge or gateway to easily and economically create networks
controlling multiple lines.
CS1W-SLK21
SYSMAC LINK Unit
CS-series
PLC
IBM PC/AT or
compatible
Coaxial cable 3G8C2-SLK21-E
SYSMAC LINK
Support Board
C200HW-SLK23/SLK24
SYSMAC LINK Unit
CV500-SLK21
SYSMAC LINK Unit
C200HX/HG/HE CVM1,
CV-series PLC
C1000H-SLK21-V1
SYSMAC LINK Unit
C1000H,
C1000HF,
C2000H
3G8C2-SLK21-E
SYSMAC LINK
Support Board
IBM PC/AT or
compatible
CS1W-SLK11
SYSMAC LINK Unit
CS-series PLC
Optical fiber cable
(Daisy-chain
connection)
C200HW-SLK13/SLK14
SYSMAC LINK Unit
CV500-SLK11
SYSMAC LINK Unit
C200HX/HG/HE
CVM1,
CV-series PLC
24-VDC
Backup Power
Supply
100-VAC
Backup Power
Supply
C1000H-SLK11
SYSMAC LINK Unit
C1000H, C1000HF,
C2000H
C200H-APS03
Power Supply
Unit
C1000H-APS01
Power Supply
Unit
Network 1 (local network) Network 2 Network 3
SYSMAC LINK Controller Link, Ethernet, SYS-
MAC LINK, SYSMAC NET, etc.
Controller Link, Ethernet, SYS-
MAC LINK, SYSMAC NET, etc
.

3
SYSMAC LINK Unit Features Section 1-2
1-2 SYSMAC LINK Unit Features
CS-series SYSMAC LINK Units are equipped with a variety of special features
including some developed from those incorporated by the C-series SYSMAC
LINK Unit. These features allow PLCs in a SYSMAC LINK Network to commu-
nicate with or automatically exchange data with other PLCs in the same Net-
work and to communicate with interconnected Networks.
High Speed, Reliability,
and Flexibility
The specialized communications LSIs used in all SYSMAC LINK Units deliver
high speed, reliability, and flexibility in an advanced data link system, while
optical fiber cable systems provide high-speed communications with unparal-
leled immunity to noise.
In the event of an error or failure in the polling node, another node automati-
cally takes over management of the SYSMAC LINK System without stopping
the entire network. The CX-Net within the CX-Programmer can monitor and/or
program PLCs anywhere in the network via the SYSMAC LINK System.
Distributed Control with
Data Links
The data link function transfers data to and from other nodes automatically,
establishing simple but powerful peer-to-peer links between nodes. Data links
can be generated automatically or the user can use the flexibility of manually
generating data links to eliminate unused link words, improve data link I/O
response time, and to even create several data link groups in one network.
The data link communications cycle time can be fixed at a constant value, so
even simultaneous remote programming/monitoring and NETWORK READ/
WRITE instructions (RECV(98)/SEND(90)) execution have no effect on the
data link I/O response time.
The data link function allows data exchange not only between PLCs but also
between PLCs and host computers in the network, making it possible to
develop communications software with ease.
Active Communications Communications can also be programmed using ladder-diagram instructions
(SEND(90), RECV(98), and CMND(490)) to facilitate communications with
other PLCs and host computers on an as-needed basis. Use of these instruc-
tions enables the following:
1,2,3... 1. Broadcast transmissions
2. Response monitoring time setting (response time-out setting)
3. Transmit retry setting
4. Enabling/disabling responses
Internetwork
Communications
Routing tables can be set up in network PLCs so that communications are
possible with interconnecting networks or networks one network away from
the local network. This includes both bridging to other SYSMAC LINK Net-
works or passing gateways to other OMRON networks, including those in
SYSMAC NET Link Systems or SYSMAC BUS/2 Remote I/O Systems.
Remote Access The CX-Net within the CX-Programmer can access PLCs on the local net-
work, on adjacent networks, or on networks one removed from the local net-
work, including Controller Link and Ethernet Networks. Access can be used to
monitor operation and/or manipulate data and programs.
RAS Functions SYSMAC LINK Units are equipped with three RAS functions (RAS is an acro-
nym for reliability, availability, and serviceability). The Polling Node Backup
and Failed Node Bypass (optical systems only) functions prevent the network
from failing when one Unit fails. The Internode Echo Test function aids in com-
munications troubleshooting.
Remote monitoring of the network’s operating status and error logs also aids
in troubleshooting and quick correction of communications problems.