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Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
programmable controller system, please read the user's manual of the CPU module to use.
In this manual, the safety precautions are classified into two levels: "
Under some circumstances, failure to observe the precautions given under "
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]
When connecting a peripheral with the CPU module or connecting a personal computer with an
intelligent function module to modify data of a running programmable controller, configure an
interlock circuit in the sequence program to ensure that the entire system will always operate
safely. For other forms of control (such as program modification, parameter change, forced
output, or operating status change) of a running programmable controller, read the relevant
manuals carefully and ensure that the operation is safe before proceeding.
Especially in the above mentioned control operations that are performed from an external
device to a remote programmable controller, any problems on the programmable controller side
may not be dealt with promptly due to a data communication error. To prevent this, configure an
interlock circuit in the sequence program, and determine corrective actions to be taken between
the external device and programmable controller in case of a communication failure.
Do not write any data in the "system area (Use prohibited)" of the buffer memory of the
intelligent function module. Also, do not output (turn on) the "use prohibited" signal, which is one
of the output signals from the programmable controller CPU to the intelligent function module. If
data is written to the "system area (Use prohibited)" or the "use prohibited" signal is output, there
is a risk that the programmable controller system may malfunction.
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SAFETY PRECAUTIONS
(Always read these instructions before using this equipment.)
WARNING
WARNING" and "
CAUTION" may lead to
CAUTION".
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