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[Design Precautions]
Configure safety circuits external to the programmable controller to ensure that the entire system
operates safely even when a fault occurs in a personal computer. Failure to do so may result in an
accident due to an incorrect output or malfunction.
(1) Emergency stop circuits, protection circuits, and protective interlock circuits for conflicting
operations (such as forward/reverse rotations or upper/lower limit positioning) must be
configured external to the programmable controller.
(2) The station to which the board is installed may be disconnected from the data link due to a data
link error. If this occurs, the data output from the station and written to other stations before the
error will be held until the station is reconnected to the network (until its data link is restarted).
Provide a mechanism for data link status monitoring and error handling for each station that is
connected to the data link system.
For the operating status of each station after a communication failure, refer to CC-Link IE Controller
Network Reference Manual for each network. Incorrect output or malfunction due to a
communication failure may result in an accident.
When changing data during operation, configure an interlock circuit in the program to ensure that the
entire system will always operate safely. Configure an interlock circuit in the program, and determine
corrective actions to be taken between the external device and CPU module in case of a
communication failure.
Laser diodes are used in the optical transceivers of the CC-Link IE Controller Network. The laser
class (IEC 60825-1) of these laser diodes is Class 1. Do not look directly at laser light. Doing so may
harm your eyes.
Do not install the external power supply or communication cables together with the main circuit lines
or power cables. Keep a distance of 100mm (3.94 in.) or more between them. Failure to do so may
result in malfunction due to noise.
[Installation Precautions]
Shut off the external power supply for the system in all phases before installing the board to or
removing it from the personal computer.
Failure to do so may result in electric shock or cause the board to fail or malfunction.
Do not touch any connectors while power is on. Doing so may cause electric shock or malfunction.
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