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controller, be sure to read the manual carefully and thoroughly confirm the safety.
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. In addition to configuring an
interlocking circuit in a sequence program, determine how the system handles data
communication errors, etc. between the devices and the programmable controller CPU.
• 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.