CS1W-CRM21 Omron, CS1W-CRM21 Datasheet - Page 19

• Manufacturer Part Number: CS1W-CRM21
• Description: CS1 CompoNet Master
• Manufacturer: Omron

Specifications of CS1W-CRM21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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Intended Audience
Safety Precautions
Intended Audience
!WARNING
!Caution When performing any of the following operations, always check the network
!WARNING
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
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 PLC or another external factor affecting the PLC operation. Not
doing so may result in serious accidents.
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.
• Emergency stop circuits, interlock circuits, limit circuits, and other
• The PLC will turn OFF all outputs when its self-diagnosis function
• The PLC outputs may remain ON or OFF due to deposits on or
• When the 24-V DC output (service power supply) is overloaded or
• Transferring I/O memory data to the CPU Unit from a
• 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
• Transferring I/O memory from a host computer or from another
safety measures must be provided in external control circuits.
detects any error or when a severe failure alarm (FALS)
instruction is executed. Unexpected 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-diagnosis
function. As a countermeasure for all such errors, external safety
measures must be provided to ensure safety in the system.
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.
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.
Programming Device
memory to the CPU Unit.
PLC on a network.