Omron CQM1H-SCB41 operation manual Intended Audience, General Precautions, Safety Precautions

Conformance to EC Directives 3

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 ma- chines, 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 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.

!WARNING It is extremely important that a Serial Communications Board and all related 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 Serial Communications Board to the above mentioned applications.

3Safety Precautions

!WARNING Never attempt to disassemble any Units while power is being supplied. Doing so may result in electric shock.

!WARNING The CPU Unit refreshes I/O even when the program is stopped (i.e., even in PROGRAM mode). Confirm safety thoroughly in advance before changing the status of any part of memory allocated to I/O Units, Inner Boards, or Dedicated I/O Units. Any changes to the data allocated to any Unit may result in unexpected operation of the loads connected to the Unit. Any of the following operation may result in changes to memory status.

•Transferring I/O memory data to the CPU Unit from a Programming Device.

•Changing present values in memory from a Programming Device.

•Force-setting/-resetting bits from a Programming Device.

•Transferring I/O memory files from a Memory Card or EM file memory to the CPU Unit.

•Transferring I/O memory from a host computer or from another PC on a net- work.

!WARNING Never touch any of the terminals while power is being supplied. Doing so may result in electric shock.

!Caution Execute online edit only after confirming that no adverse effects will be caused by extending the cycle time. Otherwise, input signals may not be read properly.

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