Omron 3G8F7-CRM21 User manual

USER’S MANUAL
Cat. No. W485-E1-02
CompoNet Master Board
for PCI Bus / CompactPCI Bus
TM
3G8F7-CRM21 (for PCI Bus)
3G8F8-CRM21 (for CompactPCI Bus)

Trademarks and Copyrights
Microsoft, Windows, Windows 2000, Windows XP, Windows Vista, Windows 7, Visual Basic, and
Visual C++ are registered trademarks of the Microsoft Corporation.
C++Builder is the registered trademark of the Embarcadero Technologies, Inc.
ODVA, CIP, CompoNet, DeviceNet, and EtherNet/IP are trademarks of the Open DeviceNet Vendor
Association, Inc.
Other product names and company names in this manual are trademarks or registered trademarks of
their respective companies.
The copyright of the CompoNet Master Boards for PCI Bus and for CompactPCI Bus, and related
software belongs to OMRON Corporation.

3G8F7-CRM21 (for PCI Bus)
3G8F8-CRM21 (for CompactPCI Bus)
CompoNet Master Board for PCI Bus / CompactPCI Bus
User’s Manual
Revised September 2013
TM

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
damage to property.
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 parts of this manual and on some displays and on
OMRON products, has two meanings which must be distinguished in context. In one case, it means
"word" as an aggregation of data, and is abbreviated "Wd". In other case, it refers to a physical input or
output channel. In latter case, when a model has two input channels, they are referred to as Input 1
and Input 2.
The abbreviation "PC" refers to personal computers while "PLC" means Programmable Controller.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
Precautions for Safe Use
Supplementary comments on what to do or avoid doing, to use the product
safely
Precautions for Correct Use
Supplementary comments on what to do or avoid doing, to prevent failure to
operate, or undesirable effect on product performance
Note Notes in the document refer to equivalent content to the Precautions for
Correct Use or to Precautions for Safe Use.
It also 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.
Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. Additionally, there may be severe property damage.
Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury. Additionally, there may be severe property damage.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury, or property damage.
DANGER
WARNING
Caution

vi
OMRON, 2009
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
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.

vii
TABLE OF CONTENTS
PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
4 Operating Environment Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
6 Conformance with the EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
SECTION 1
Outline of CompoNet and CompoNet Master Board . . . . . 1
1-1 Overview of the CompoNet Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Overview of the CompoNet Master Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-3 Component Name and Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-4 LED Indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-5 Network Construction Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-6 Board Preparation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-7 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SECTION 2
Installation and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2-1 Mounting a Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2-2 Installing the Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2-3 Connecting the Communications Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2-4 Connecting the Communications Power Supply Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
SECTION 3
Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3-1 Settings at Communications Cycle Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3-2 Access to I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3-3 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3-4 Explicit Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3-5 Detailed Settings at Communications Cycle Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
SECTION 4
Operation by API Functions . . . . . . . . . . . . . . . . . . . . . . . . . 41
4-1 Access to I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4-2 Detailed Setting at Communications Cycle Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4-3 Explicit Messaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
4-4 Setting the Time Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4-5 Implementing the Reset Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

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TABLE OF CONTENTS
4-6 Access to Detailed Status Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4-7 PC Watchdog Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4-8 Board Hardware Error Notification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
SECTION 5
Operation by Accessing to Shared Memory. . . . . . . . . . . . . 55
5-1 Basic Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5-2 Communications Cycle Control Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5-3 Setting the Time Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
5-4 Implementing the Reset Request. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5-5 PC Watchdog Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5-6 Board Hardware Error Notification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
SECTION 6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6-1 LED Indications and Error Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6-2 Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
APPENDIX A
API Function Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
A-1 Function List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
A-2 Board Control API. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
A-3 Communications Control API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
A-4 Status Access API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
A-5 I/O Data Access API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
A-6 Explicit Messaging API. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
A-7 PC Watchdog Timer API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
A-8 Board Request Notification API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
A-9 Errors Detectable by Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
APPENDIX B
Shared Memory Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
B-1 PCI Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
B-2 PCI Register Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
B-3 Shared Memory Area Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
B-4 Command Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
APPENDIX C
Communications Performance . . . . . . . . . . . . . . . . . . . . . . . 147
C-1 Remote I/O Communications Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

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TABLE OF CONTENTS
APPENDIX D
Sample Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
D-1 Sample Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
APPENDIX E
Installation and Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
E-1 CompoNet Network Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
E-2 Wiring Formations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
E-3 Wiring for a CompoNet Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
E-4 Preparing and Mounting Flat Connectors on the Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
E-5 Wiring for Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .195

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TABLE OF CONTENTS

xi
About This Manual
This manual describes the installation and operation of the 3G8F7-CRM21 CompoNet Master Board
for PCI Bus and the 3G8F8-CRM21 CompoNet Master Board for CompactPCI Bus. The CompoNet
Master Board functions as the CompoNet Master Unit. There are two types: One is compatible with
PCI bus (model # 3G8F7-CRM21), and the other is compatible with CompactPCI bus (model # 3G8F8-
CRM21) .
Please read this manual carefully and be sure you understand the information provided before
attempting to install or operate a CompoNet Master Board. Be sure to read the precautions provided in
the following section. Also be sure to read the CompoNet Slave Unit Operation Manual (see following
table) together with this manual.
The manual contains the following sections:
Precautions provide general precautions for using the CompoNet Master Board and related devices.
Section 1 outlines the CompoNet and the CompoNet Master Board. Read this section carefully before
you use the CompoNet Master Board for the first time.
Section 2 outlines the installation and setup. It includes procedures to mount a Board, to install a
driver, and to connect the communications cables.
Section 3 describes the functions of the CompoNet Master Boards. There are basic and special
functions.
Section 4 describes the operations by API functions to control the Board in the Windows operation
systems.
Section 5 describes the operations by shared memory access to control the Board in operation
systems, other than Windows.
Section 6 describes the troubleshooting. It is recommended to read them first to prevent any errors
from occurring.
Appendix A describes the API functions.
Appendix B describes the shared memory interfaces.
Appendix C explains the communications performance.
Appendix D describes the sample program provided in the product package.
Appendix E describes the construction of a CompoNet Network.
It includes the network specifications, the wiring procedures and the preparation of Flat Connectors.

xii
Related Manuals
Cat No. Model Name Description
W485
(this manual) 3G8F7-CRM21 3G8F8-CRM21 CompoNet MasterBoardfor
PCI Bus and for CompactPCI
Bus Operation Manual
Provides the specifications of
the CompoNet Master Board
W457 CRT1 CR1-series CompoNet
Slave Units and Repeater Unit
Operation Manual
Provides the specifications of
CompoNet Slave Units and
Repeater Units
W456 CS1W-CRM21
CJ1WCRM21 CS/CJ-series CompoNet
Master Units Operation
Manual
Provides an overview of
CompoNet Networks,
communications
specifications, wiring
methods, and CompoNet
Master Unit functions
The failure to read and understand the information provided in this manual may result in
personal 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.
TM
TM
TM
WARNING

xiii
Terms and Conditions Agreement
Please read and understand this catalog before purchasing the products. Please consult your
OMRON representative if you have any questions or comments.
zExclusive Warranty
Omron’s exclusive warranty is that the Products will be free from defects in materials and work-
manship for a period of twelve months from the date of sale by Omron (or such other period
expressed in writing by Omron). Omron disclaims all other warranties, express or implied.
zLimitations
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF
THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based
on infringement by the Products or otherwise of any intellectual property right.
zBuyer Remedy
Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form origi-
nally shipped with Buyer responsible for labor charges for removal or replacement thereof) the
non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an
amount equal to the purchase price of the non-complying Product; provided that in no event shall
Omron be responsible for warranty, repair, indemnity or any other claims or expenses 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 modifi-
cation. Return of any Products by Buyer must be approved in writing by Omron before shipment.
Omron Companies shall not be liable for the suitability or unsuitability or the results from the use
of Products in combination with any electrical or electronic components, circuits, system assem-
blies or any other materials or substances or environments. Any advice, recommendations or
information given orally or in writing, are not to be construed as an amendment or addition to the
above warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CON-
SEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN
ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CON-
TRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on
which liability is asserted.
Read and understand this Manual
Warranty, Limitations of Liability
Warranties
Limitation on Liability; Etc

xiv
Omron Companies shall not be responsible for conformity with any standards, codes or regulations
which apply to the combination of the Product in the Buyer’s application or use of the Product. At
Buyer’s request, Omron will provide applicable third party certification documents identifying ratings
and limitations of use which apply to the Product. This information by itself is not sufficient for a com-
plete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriate-
ness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take
application responsibility in all cases.
NEVER USE THE PRODUCT 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(S) IS PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Omron Companies shall not be responsible for the user’s programming of a programmable Product,
or any consequence thereof.
Data presented in Omron Company websites, catalogs and other materials 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 user must correlate it to actual application requirements. Actual per-
formance is subject to the Omron’s Warranty and Limitations of Liability.
Product specifications and accessories may be changed at any time based on improvements and
other reasons. It is our practice to change part numbers when published ratings or features are
changed, or when significant construction changes are made. However, some specifications of the
Product may be changed without any notice. When in doubt, special part numbers may be assigned
to fix or establish key specifications for your application. Please consult with your Omron’s represen-
tative at any time to confirm actual specifications of purchased Product.
Information presented by Omron Companies has been checked and is believed to be accurate; how-
ever, no responsibility is assumed for clerical, typographical or proofreading errors or omissions.
Application Considerations
Suitability of Use
Programmable Products
Disclaimers
Performance Data
Change in Specifications
Errors and Omissions

xv
PRECAUTIONS
This section provides general precautions for use of the CompoNet Master Boards.
The information contained in this section is important for the safe, reliable application of the CompoNet Master
Board. You must read this section and understand the information contained before attempting to set up or
operate a CompoNet Network using CompoNet Master Boards.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
4 Operating Environment Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
6 Conformance with the EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
6-1 Applicable Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
6-2 Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx
6-3 Conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

xvi
Intended Audience 1
1 Intended Audience
This manual is intended for the following personnel to read and use. The
personnel must have knowledge of electrical systems and would therefore be
electrical engineers or the equivalent:
• Personnel in charge of introducing 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
specifications described in the operation manuals. Before using the product
under conditions that are not described in the manual or when applying the
product to nuclear control systems, railroad systems, aviation systems,
vehicles, combustion systems, medical equipment, amusement machines or
safety equipment, or to other systems, machines and equipment that may
have a serious influence on lives and property if used improperly, consult your
OMRON representative.
Be certain 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
manual close at hand for reference during operation.
Be sure this manual is delivered to the persons actually using the CompoNet
Master Boards.
It is extremely important that a PLC and all PLC Units be used for the specified 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 applications.
WARNING

xvii
Safety Precautions 3
3 Safety Precautions
4 Operating Environment Precautions
• 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
temperature
• 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 (including
acids)
• Locations subject to shock or vibration
5 Application Precautions
Observe the following precautions when using a CompoNet Network.
• When more than one CompoNet system use Flat Cables, always
separate the Flat Cables from each other by at least 5 mm regardless of
whether Flat Cable I or II is used. Do not bundle the Flat Cables. This is to
prevent unstable operation of the system due to interference.
Do not attempt to take any Unit apart or touch the component inside while the power is
being supplied. Doing so may result in electric shock.
Do not touch any of the terminals or terminal blocks while the power is being supplied.
Doing so may result in electric shock.
Fail-safe measures must be taken by the user to ensure safety in the event of incorrect,
missing or abnormal signals caused by broken signal lines, momentary power
interruptions or other causes. Serious accidents may result from abnormal operation if
proper measures are not provided.
Provide safety measures in external circuits (i.e., not in the personal computers) that
ensure safety of the system in any event of an abnormality due to malfunction of the PC
or another external factor affecting the PC operation. The failure to do so may result in
serious accidents. Emergency stop circuits, interlock circuits, limit circuits and similar
safety measures must be provided in external control circuits.
Confirm safety at the destination Slave Unit before changing it or transferring parameters
to another node. Changing or transferring any of these without confirming safety may
result in unexpected equipment operation.
A Slave Unit may change the output content if it faces a communications failure. When
you use outputting devices, confirm their operation specification on an event of
communications failure, and take the necessary safety measures.
Do not operate the products in the following locations.
WARNING
WARNING
WARNING
WARNING
Caution
Caution
Caution

xviii
Application Precautions 5
• 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.
• Configure the control circuits so that the power to the PC (near the
CompoNet Master Board) will be on after the power to the I/O Slave Units.
If the PC power supply is turned on first, normal operation will not be
ensured, even temporarily.
• Use the Boards within the communications distance and the number of
connectable Units as defined in the specifications.
• Do not attempt to disassemble, repair or modify any Units. Any attempt to
do so may result in a malfunction, fire or electric shock.
• When installing the Unit, ground to 100 Ω/min.
• Be certain all screws to fix the Board to the PC, as well as the screws on
connectors, cables and terminal blocks, are tightened to the torque
specified in the corresponding manuals. Incorrect tightening torque may
result in a malfunction.
• Be sure the Board on the PC is securely mounted.
• All installation and wiring must observe the instructions in this manual.
• Use correct wiring tools and components for wiring.
• Confirm the orientation and polarity before connecting the terminal blocks
or connectors.
• Do not supply electricity while a terminal block cover is open.
• Confirm voltage specifications before wiring the communications lines,
the power supplies or the I/O circuits. Incorrect specification may result in
a malfunction.
• Install external breakers and take other safety measures against short-
circuiting in the external wiring. Insufficient safety measures against
short-circuiting may result in burning.
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals. The 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.
• Be sure no waste metal enters the PC during the installation and wiring
work.
• Be certain the terminal blocks, connectors, expansion cables,
communications cables and other items with locking devices are properly
locked in place. Improper locking may result in a malfunction.
• Always use the power-supply voltages specified in the operation manual.
A malfunction or burning may occur as the result of incorrect voltage.
• 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 a malfunction.
• Check the user program for proper execution before actually running it on
the Unit. The failure to check the program may result in unexpected
operation.
• Always turn OFF the power supply to the personal computer, the Slave
Units and communications before attempting any of the following. The
failure to turn OFF the power supply may result in a malfunction or electric
shock.

xix
Application Precautions 5
• Mounting or removing a CompoNet Master Board
• Assembling devices
• Setting rotary switches
• Connecting cables or wiring the system
• Connecting or disconnecting the connectors
• Close the PC cover before wiring work. This is used to prevent wire waste
from entering the PC.
• Before touching a CompoNet Master Board, be sure to first touch a
grounded metallic object in order to discharge any static buildup. The
failure to do so may result in a malfunction or damage.
• When replacing parts, be sure to confirm that the rating of the new part is
correct. The failure to do so may result in a malfunction or burning.
• When transporting a CompoNet Master Board, use special packing boxes
and protect it from exposure to excessive vibration or impact during
transportation.
• Use the Board in the specified ambient operating temperature and
humidity.
• Store the Board in the specified ambient storage temperature.
• Circuit boards have sharp edges such as leads of electric components.
Do not touch the parts where such components are mounted or the backs
of circuit boards by hand.
• Use only the specified communications cables.
• Do not extend connection distances beyond the ranges given in the
specifications.
• Observe the given precautions when wiring the communications cable.
• Separate the communications cables from the power lines or high-tension
lines.
• Do not bend the communications cables past their natural bending radius.
• Do not pull on the communications cables.
• Do not place heavy objects atop the communications cables.
• Always lay communications cables inside ducts.
• 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
• Do not use the computer’s standby or sleep function while you are using
the CompoNet Master Board. If the computer’s standby or sleep function
is activated during CompoNet Master Board usage, communications may
be broken or other unexpected errors may occur.
• The CompoNet Master Board does not support computer standby or
sleep functions. Do not use the computer’s standby or sleep function
while you are using the CompoNet Master Board.

xx
Conformance with the EC Directives 6
6 Conformance with the EC Directives
6-1 Applicable Directives
•EMCDirectives
6-2 Concepts
EMC Directives
The OMRON products are electric components that usually are used after
being built in other machinery or manufacturing equipment. They are
designed to conform to the relevant EMC Directives. This will facilitate the
compliance of the final machinery or apparatus to such directives. However,
the installation and configuration of such machinery and apparatus in which
the OMRON products are mounted and used will differ according to their
characteristics. Thus it is virtually impossible for OMRON to ensure the
conformity of an entire system to the relevant EMC Directives. The users must
conduct the necessary tests and ensure the conformity of the system as a
whole.
The relevant EMC Directives are:
EN 61131-2 and EN 61000-6-2 for EMS, i.e., Electromagnetic susceptibility,
EN 61131-2 and EN 61000-6-4 for EMI, i.e., Electromagnetic Interference,
and EN61000-6-4 for Radiated emission, 10-m regulations, among EMC
(Electro-Magnetic Compatibility).
6-3 Conformity
The OMRON products in this manual comply with the relevant EMC
Directives. To ensure that the machinery or apparatus in which the OMRON
products are used complies with the EC Directives, the user must follow these
instructions:
1,2,3... 1. The OMRON product must be installed in a control panel.
2. DC power supply unit as well as DC power connected to I/O Units must
have reinforced insulation or double insulation.
3. Compliance to the EC Directives means conformity to the Emission
Standards (EN 61000-6-4). Radiated emission characteristics (10-m
regulations) may vary, however, depending on the configuration of the
control panel used, the compatibility with other devices connected to the
control panel, the effects of wiring and other conditions. The user must
confirm that the overall machine or equipment complies with the EC
Directives.