Omron C200HX-CPU-E Series User manual

Cat. No. W302-E1-15
Programmable Controllers
C200HX-CPUjj-E/-ZE
C200HG-CPUjj-E/-ZE
C200HE-CPUjj-E/-ZE

C200HX-CPUjj-E/-ZE
C200HG-CPUjj-E/-ZE
C200HE-CPUjj-E/-ZE
Programmable Controllers
Installation Guide
Revised February 2016

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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 the product.
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 mod-
erate 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 “PC” means Programmable Controller and is not used as an abbreviation for any-
thing else.
Visual Aids
The following headings appear in the left column of the manual to help you locate different types of
information.
Note Indicates information of particular interest for efficient and convenient operation
of the product.
1, 2, 3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
OMRON, 1996
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any
form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permis-
sion of OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is
constantly striving to improve its high-quality products, the information contained in this manual is subject to change
without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no
responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the informa-
tion contained in this publication.

vi

TABLE OF CONTENTS
vii
PRECAUTIONS xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Intended Audience xiv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xivsnoituacerPlareneG2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions xiv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vxsnoituacerPtnemnorivnEgnitarepO4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ivxsnoituacerPnoitacilppA5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 EC Directives xviii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1
1noitcudortnI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1 What is a Control System? 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 The Role of the PC 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-1 Input Devices 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-2 Output Devices 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 How Does a PC Work? 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
9stinUdnanoitarugifnoCmetsyS . . . . . . . . . . . . . . . . . . . .
2-1 Basic Configuration 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-1 CPU Rack 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-2 Expansion I/O Racks 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1-3 I/O Connecting Cable 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2 Units 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-1 CPU Units 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-2 Memory Cassettes 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-3 Communications Boards 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-4 Power Supply Units 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-5 Backplanes 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-6 Standard I/O Units 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-7 Group-2 High-density I/O Units 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2-8 High-density I/O Units Classified as Special I/O Units 30. . . . . . . . . . . . . . . . . . .
2-3 Peripheral Devices 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-1 Programming Consoles 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-3-2 CX-Programmer 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4 Expanded System Configurations 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4-1 Required Mounting Conditions 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4-2 Special I/O Units 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-4-3 Link Systems and Networks 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 3
74gniriWdnanoitallatsnI . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1 Installation Environment 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-1 Installation and Wiring Precautions. 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-2 Installing Racks 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-3 Mounting Height 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-4 Mounting Dimensions (Units: mm) 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-5 DIN Track Mounting 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-6 Mounting Units to the Backplane 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-7 I/O Connecting Cables 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-8 Mounting Memory Cassettes 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1-9 Mounting a Communications Board 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2 Wiring 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TABLE OF CONTENTS
viii
3-2-1 Power Supply Wiring 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-2 Standard I/O Unit Wiring 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2-3 Electrical Noise 74. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4
Programming Console Operation 79. . . . . . . . . . . . . . . . . . .
4-1 Using the Programming Console 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1-1 Nomenclature 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1-2 Connecting the Programming Console 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2 Checking Initial Operation 82. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 5
Troubleshooting, Inspections, and Maintenance 83. . . . . . .
5-1 Troubleshooting 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2 Inspection and Maintenance 87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2-1 Replacing Output Unit Fuses 87. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2-2 Replacing Relays 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-2-3 Batteries 91. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3 Inspections 92. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-4 Using Power Supply Units with Replacement Notification 93. . . . . . . . . . . . . . . . . . . . . . .
Appendices
A Standard Models 95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Specifications 113. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Unit Current and Power Consumption 213. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D Dimensions and Mounting Methods 219. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E Power Supply Units with Replacement Notification 229. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F Precautions when Replacing the C200HW-PA204/PA204R 237. . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary 239. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index 243. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Revision History 247. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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About this Manual:
This manual describes the installation of C200HX, C200HG, and C200HE Programmable Controllers,
and it includes the sections described below. Programming and operating information is provided in the
C200HX/C200HG/C200HE Operation Manual.
Please read this manual completely and be sure you understand the information provided before attempt-
ing to install a C200HX/C200HG/C200HE PC. Be sure to read the precautions in the following sec-
tion.
Section 1 is an introduction to Programmable Controllers (or PCs). General information is provided on
PCs and how they work.
Section 2 provides a description of all the components of the C200HX/C200HG/C200HE. The names of
the parts of each Unit are given. Expanded systems, including networks and Special I/O Units are also
introduced.
Section 3 describes how to install and wire a PC System.
Section 4 provides general information about the Programming Console.
Section 5 provides information on hardware and software errors that occur during PC operation. It also
covers maintenance and inspection, and explains how to replace consumable components such as
fuses, relays, and batteries.
Appendix A provides tables of standard models.
Appendix B provides tables of Unit specifications.
Appendix C provides the current/power consumptions for the Units and calculations of the total con-
sumption of a PC.
Appendix D provides Unit dimensions and mounting information.
Appendix E provides information on the Power Supply Units with Replacement Notification.
Appendix F lists the differences between different Power Supply Units.
A Glossary, and an Index are also provided.
WARNING 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 given.
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xi
Terms and Conditions Agreement
Warranty, Limitations of Liability
Warranties
●Exclusive Warranty Omron’s exclusive warranty is that the Products will be free from defects in
materials and workmanship 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.
●Limitations OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR
IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FIT-
NESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PROD-
UCTS 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 intel-
lectual property right.
●Buyer Remedy Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace
(in the form originally 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 modification. Return
of any Products by Buyer must be approved in writing by Omron before ship-
ment. 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 elec-
tronic components, circuits, system assemblies or any other materials or sub-
stances 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.
Limitation on
Liability; Etc
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR
PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH
THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT,
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.

xii
Application Considerations
Suitability of Use 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 pro-
vide applicable third party certification documents identifying ratings and limi-
tations of use which apply to the Product. This information by itself is not
sufficient for a complete determination of the suitability of the Product in com-
bination with the end product, machine, system, or other application or use.
Buyer shall be solely responsible for determining appropriateness of the par-
ticular 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 SYS-
TEM.
Programmable
Products
Omron Companies shall not be responsible for the user’s programming of a
programmable Product, or any consequence thereof.
Disclaimers
Performance Data Data presented in Omron Company websites, catalogs and other materials is
provided as a guide for the user in determining suitability and does not consti-
tute a warranty. It may represent the result of Omron’s test conditions, and the
user must correlate it to actual application requirements. Actual performance
is subject to the Omron’s Warranty and Limitations of Liability.
Change in
Specifications
Product specifications and accessories may be changed at any time based on
improvements and other reasons. It is our practice to change part numbers
when published ratings or features are changed, or when significant construc-
tion 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 con-
sult with your Omron’s representative at any time to confirm actual specifica-
tions of purchased Product.
Errors and Omissions Information presented by Omron Companies has been checked and is
believed to be accurate; however, no responsibility is assumed for clerical,
typographical or proofreading errors or omissions.

PRECAUTIONS
This section provides general precautions for using the Programmable Controller (PC) and related devices.
The information contained in this section is important for the safe and reliable application of the PC. You must read
this section and understand the information contained before attempting to set up or operate a PC system.
1 Intended Audience xiv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 General Precautions xiv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Safety Precautions xiv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operating Environment Precautions xv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Application Precautions xvi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 EC Directives xviii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
xiii

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1Safety Precautions
xiv
1 Intended Audience
This manual is intended for the following personnel, who must also have knowl-
edge 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 specifications
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, amusement
machines, safety equipment, and other systems, machines, and equipment 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 PCs.
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 PC and all PC 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 PC System to the abovementioned
applications.
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 Do not touch the Power Supply Unit while power is being supplied or
immediately after power has been turned OFF. 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 PC or another external factor
affecting the PC operation. Not doing so may result in serious accidents.

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4Operating Environment Precautions
xv
•Emergency stop circuits, interlock circuits, limit circuits, and similar safety
measures must be provided in external control circuits.
•The PC will turn OFF all outputs when its self-diagnosis function detects any
error or when a severe failure alarm (FALS) instruction is executed. Unex-
pected operation, however, may still occur for errors in the I/O control section,
errors in I/O memory, and other errors that cannot be detected by the self-diag-
nosis function. As a countermeasure for all such errors, external safety mea-
sures must be provided to ensure safety in the system.
•The PC outputs may remain ON or OFF due to deposition or burning of the
output relays or destruction of the output transistors. As a countermeasure 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 PC) 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 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 Tighten the screws on the terminal block of the AC Power Supply Unit to the
torque specified in the operation manual. The loose screws may result in burning
or malfunction.
Caution When using the C200HW-PA209R Power Supply Unit with an 8-slot or 10-slot
CPU Backplane or Expansion I/O Backplane, be sure to use only Backplanes
with “-V1” at the end of the model number. Using an 8-slot or 10-slot Backplane
without “-V1” at the end of the model number may result in malfunction due to
deterioration of the base or pattern burnout. The 3-slot and 5-slot Backplanes do
not come in “-V1” models, and models without “-V1” can be used.
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 tempera-
ture.
•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:

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!
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5Application Precautions
xvi
•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 The operating environment of the PC system can have a large effect on the lon-
gevity and reliability of the system. Improper operating environments can lead to
malfunction, failure, and other unforeseeable problems with the PC system. Be
sure that the operating environment is within the specified conditions at installa-
tion and remains within the specified conditions during the life of the system.
5 Application Precautions
Observe the following precautions when using the PC system.
WARNING Always heed these precautions. Failure to abide by the following precautions
could lead to serious or possibly fatal injury.
•Always ground the system to 100 Ωor less when installing the Units. Not con-
necting to a ground of 100 Ωor less may result in electric shock.
•Always turn OFF the power supply to the PC before attempting any of the fol-
lowing. Not turning OFF the power supply may result in malfunction or electric
shock.
•Mounting or dismounting I/O Units, CPU Units, Memory Cassettes, Power
Supply Units, or any other Units.
•Assembling the Units.
•Setting DIP switches or rotary switches.
•Connecting cables or wiring the system.
•Connecting or disconnecting the connectors.
Caution Failure to abide by the following precautions could lead to faulty operation of the
PC or the system, or could damage the PC or PC Units. Always heed these pre-
cautions.
•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.
•Always use the power supply voltages specified in this manual. 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-circuit-
ing in external wiring. Insufficient safety measures against short-circuiting may
result in burning.
•Install Units as far as possible away from devices that generate strong, high-
frequency noise.
•Do not apply voltages to the Input Units in excess of the rated input voltage.
Excess voltages may result in burning.
•Do not apply voltages or connect loads to the Output Units in excess of the
maximum switching capacity. Excess voltage or loads may result in burning.
•Change the applied voltage gradually using the adjuster on the Tester. If di-
electric strength is suddenly applied or turned OFF using the switch on the Tes-
ter, the generated impulse voltage may damage the Power Supply Unit.

5Application Precautions
xvii
•Disconnect the LG terminal on the Power Supply Unit from the GR terminal
before executing insulation resistance or withstand voltage tests.
•Be sure that all the mounting screws, terminal screws, and cable connector
screws are tightened to the torque specified in this manual. Incorrect tighten-
ing torque may result in malfunction.
•Do not apply a force greater than 100 N on the terminal block when tightening
the terminals.
•Do not drop the product or subject it to excessive vibration or shock.
•Leave the label attached to the Unit when wiring. Removing the label may re-
sult in malfunction if foreign matter enters the Unit.
•Remove the label after the completion of wiring to ensure proper heat dissipa-
tion. Leaving the label attached may result in malfunction.
•Double-check all wiring and switch settings before turning ON the power sup-
ply. Incorrect wiring may result in burning.
•Wire correctly. Incorrect wiring may result in burning.
•Mount Units only after checking terminal blocks and connectors completely.
•Be sure that the terminal blocks, Memory Units, expansion cables, and other
items with locking devices are properly locked into place. Improper locking
may result in malfunction.
•Check the user program for proper execution before actually running it on the
Unit. Not checking the program may result in an unexpected operation.
•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 PC. (This includes changing the start-
up operating mode.)
•Force-setting/force-resetting any bit in memory.
•Changing the present value of any word or any set value in memory.
•Resume operation only after transferring to the new CPU Unit the contents of
the DM Area, HR Area, and other data required for resuming operation. Not
doing so may result in an unexpected operation.
•Do not pull on the cables or bend the cables beyond their natural limit. Doing
either of these may break the cables.
•Do not place objects on top of the cables or other wiring lines. Doing so may
break the cables.
•Use crimp terminals for wiring. Do not connect bare stranded wires directly to
terminals. Connection of bare stranded wires may result in burning.
•When replacing parts, be sure to confirm that the rating of a new part is correct.
Not doing so may result in malfunction or burning.
•Before touching a Unit, be sure to first touch a grounded metallic object in order
to discharge any static built-up. Not doing so may result in malfunction or dam-
age.
•When wiring crossovers between terminals, the total current for both terminals
will flow in the line. Check the current capacities of all wires before wiring cross-
overs.
•The following precautions apply to Power Supply Units with Replacement Noti-
fication.
•When the LED display on the front of the Power Supply Unit starts to alter-
nately display “0.0” and “A02” or the alarm output automatically turns OFF,
replace the Power Supply Unit within 6 months.
•Separate the alarm output cables from power lines and high-voltage lines.
•Do not apply a voltage or connect a load to the alarm output that exceeds
the rated voltage or load.

6EC Directives
xviii
•Maintain an ambient storage temperature of –20 to 30_C and humidity of
25% to 70% when storing the product for longer than 3 months to keep the
replacement notification function in optimum working
condition.
•Always use the standard installation method. A nonstandard installation
will decrease heat dissipation, delay the replacement notification signal,
and may degrade or damage the internal elements.
•Design the system so that the power supply capacity of the Power Supply Unit
is not exceeded.
•Do not touch the terminals on the Power Supply Unit immediately after turning
OFF the power supply. Electric shock may occur due to the residual voltage.
6 EC Directives
6-1 Applicable Directives
•EMC Directives
•Low Voltage Directive
6-2 Concepts
EMC Directives
OMRON devices that comply with EC Directives also conform to the related
EMC standards so that they can be more easily built into other devices or the
overall machine. The actual products have been checked for conformity to EMC
standards (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 on which the OMRON devices are installed. The cus-
tomer must, therefore, perform the final check to confirm that devices and the
overall machine conform to EMC standards.
Note Applicable EMC (Electromagnetic Compatibility) standards are as follows:
EMS (Electromagnetic Susceptibility): EN61131-2
EMI (Electromagnetic Interference): EN61000-6-4
(Radiated emission: 10-m regulations)
Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 VAC and 75 to
1,500 VDC meet the required safety standards for the PC (EN61131-2).
6-3 Conformance to EC Directives
The C200HX/C200HG/C200HE PCs comply with EC Directives. To ensure that
the machine or device in which the C200HX/C200HG/C200HE PC is used com-
plies with EC directives, the PC must be installed as follows:
1, 2, 3... 1. The C200HX/C200HG/C200HE PC must be installed within a control panel.
2. Reinforced insulation or double insulation must be used for the DC power
supplies used for the communications and I/O power supplies.
3. C200HX/C200HG/C200HE PCs complying with EC Directives also con-
form to the Common Emission Standard (EN61000-6-4). Radiated emis-
sion characteristics (10-m regulations) may vary depending on the configu-
ration of the control panel used, other devices connected to the control pan-
el, wiring, and other conditions. You must therefore confirm that the overall
machine or equipment complies with EC Directives.

6EC Directivesx
xix
6-4 Relay Output Noise Reduction Methods
The C200HX/C200HG/C200HE PCs conform to the Common Emission Stan-
dards (EN61000-6-4) of the EMC Directives. However, the noise generated
when the PC is switched ON or OFF using the relay output may not satisfy these
standards. In such a case, a noise filter must be connected to the load side or
other appropriate countermeasures must be provided external to the PC.
Countermeasures taken to satisfy the standards vary depending on the devices
on the load side, wiring, configuration of machines, etc. Examples of counter-
measures for reducing the generated noise are given on page 137.
Countermeasures
(Refer to EN61000-6-4 for more details.)
Countermeasures are not required if the frequency of load switching for the
whole system with the PC included is less than 5 times per minute.
Countermeasures are required if the frequency of load switching for the whole
system with the PC included is 5 times or more per minute.