Mitsubishi Electric GT15-J71GP23-SX User Manual page 3

[DESIGN PRECAUTIONS]
 If a communication fails in data link, the faulty station holds the data link data
generated before the communication error. Create an interlock circuit in the
sequence program using the communication status information in order that
the system will operate safely.
Failure to do so may cause mis-outputs or malfunctions, resulting in
accidents.
Check the faulty station and the operation status during communication error
by referring to the relevant manuals.
 Some failures of cable or communication unit may cause the GOT to keep the
outputs on or off.
Create an external circuit for monitoring output signals that may lead to
serious accidents.
Failure to do so may cause mis-outputs or malfunctions, resulting in
accidents.
 If a communication error (including cable disconnection) occurs during
monitoring, the communication between the GOT and programmable
controller CPU may be interrupted and the GOT may be inoperative.
For bus connection : The programmable controller CPU is down and the
For other than above: The GOT is inoperative.
When configuring a system including the GOT, the possibility of GOT
communication error must be considered; make sure the operation significant
for the system will be performed by switches on devices other than the GOT.
Failure to do so may cause mis-outputs or malfunctions, resulting in
accidents.
 Laser diodes are used in optical transceivers for the CC-Link IE Controller
Network. The class of these laser diodes is Class 1.
 Do not bunch the control wires or communication cables with the main circuit
or power wires, or lay them close to each other.
As a guide, separate the lines by a distance of at least 100mm (3.94 inches)
otherwise malfunctions may occur due to noise.
WARNING
GOT is inoperative.
CAUTION
A-2