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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.
These precautions apply only to this product.
Refer to the user’s manual of the CPU module to use for a description of the programmable controller
system safety precautions.
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 PRECAUTIONS]
WARNING
• For the operating status of each station after a data link failure, refer to Chapter 5 in this manual.
• The master station or local station cannot detect errors when a station specified as an error-
invalidated station becomes communication error.
CAUTION
• Do not install the control lines or communication cables together with main circuit lines or power
cables. Keep distance of 100mm (3.9 inch) or more between them. Failure to do so may result in
malfunction due to noise.
[INSTALLATION PRECAUTIONS]
CAUTION
• Use the programmable controller in an environment that meets the specifications in the user’s
manual of the CPU module used. Failure to do so may result in electric shock, fire, malfunction,
or damage to or deterioration of the product.