Mitsubishi Electric A1SJ71AP23Q User Manual page 3

[DESIGN PRECAUTIONS]
● To control a running programmable controller (data modification) by
connecting GX Developer to a CPU module or connecting a personal
computer to an intelligent function module (special function module), create
an interlock circuit on the sequence program so that the entire system will
function safely all the time.
Also, before performing any other controls (e.g. program modification,
operating status change (status control)) to the programmable controller, read
the manual carefully and ensure the safety.
Especially, in the case of controlling a remotely-located programmable
controller from an external device, a programmable controller side problem
could not be resolved immediately due to data communication failure.
To prevent this, establish corrective procedures for communication failure
between the external device and the programmable controller CPU, as well as
creating an interlock circuit on the program.
● Do not install the control lines and/or communication cables together with the
main circuit or power cables, and also do not bring them close to each other.
Keep a distance of 100mm (3.94 inch) or more between them.
Failure to do so may cause a malfunction due to noise.
WARNING
CAUTION
A-2