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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.
The precautions given in this manual are concerned with this product only. For the safety precautions of
the programmable controller system, refer to the user's manual for the CPU module used.
In this manual, the safety precautions are classified into two levels: "
WARNING" and " CAUTION".
Items marked with an exclamation point in a triangle could also cause severe consequences,
depending on the circumstances, if not handled properly.
They indicate information that should be taken seriously and observed conscientiously.
Manuals supplied with the products should be stored carefully where they can be accessed whenever
necessary, and should always be passed on to the end user along with the equipment.
[Design Precautions]
WARNING
When a communication error occurs in data link, the faulty station will result in the following status.
Using the communication status information, configure up an interlock circuit in the sequence
program to make the system safe.
Misoutput or misoperation may cause an accident.
(1) General-purpose inputs from this module all switch off.
(2) General-purpose outputs from this module all switch off.
Some module failures may keep input/output on or off. Provide an external monitoring circuit for
I/O signals which may lead to serious accidents.
CAUTION
Do not bundle control lines or communication cables with main circuit or power lines or lay them
near these lines.
As a guideline, separate the cables at least 100mm(3.94inch).
Not doing so could result in noise that would cause erroneous operation.
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