Intended Audience; General Precautions; Safety Precautions - Omron NT-DRT21 Operation Manual

Safety Precautions

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Intended Audience

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General Precautions

WARNING
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Safety Precautions

WARNING
!
WARNING
!
WARNING
!
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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.
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 using the DeviceNet (CompoBus/D) I/F
Unit. Be sure to read this manual before attempting to use the Unit and keep this
manual close at hand for reference during operation.
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 above-mentioned
applications.
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, Special I/O Units, or CPU Bus
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.
Do not attempt to take any Unit apart 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.
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