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• SAFETY PRECAUTIONS •
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full
attention to safety to handle the product correctly.
In this manual, the safety precautions are classified into two levels: "
WARNING" and " CAUTION".
Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to
serious consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future
reference.
[Design Instructions]
!
WARNING
• When data/program change, or status control is performed from a PC to a running safety
programmable controller, create an interlock circuit outside the sequence program and safety
programmable controller to ensure that the whole system always operates safely.
For the operations to a safety programmable controller, pay full attention to safety by reading
the relevant manuals carefully, and establishing the operating procedure.
Furthermore, for the online operations performed from a PC to a safety CPU module, the
corrective actions of the whole system should be predetermined in case that a communication
error occurs due to a cable connection fault, etc.
• When a safety remote I/O module has detected a CC-Link Safety error, it turns off all the
outputs.
Note that the outputs in a ladder program are not automatically turned off.
If a CC-Link Safety error has been detected, create a ladder program that turns off the outputs
in the program.
If the CC-Link Safety is restored with the outputs on, it may suddenly operate and result in an
accident.
• To inhibit restart without manual operation after safety function was performed and outputs
were turned OFF, create an interlock program which uses a reset button for restart.