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]
DANGER
Do not write any data to the "system area" and "write-protect area" of the buffer memory in the
intelligent function module.
Also, do not use any "use prohibited" signals as an output signal from the programmable controller CPU
to the intelligent function module.
Doing so may cause malfunction of the programmable controller system.
CAUTION
Do not install the control lines or communication cables together with the main circuit lines or power
cables.
Keep a distance of 100mm (3.94 inches) or more between them.
Failure to do so may result in malfunction due to noise.