SMC Networks EX600-SDN Series Operation Manual page 21

TM
DeviceNet
LED status
Power for control/input is OFF.
Communicating normally.
Not communication normally.
Check for node address duplication.
Connection cannot be established.
Component failure inside SI unit.
Stop using the product and contact SMC.
Critical communication error.
(Check and change as necessary the items below, then restart.)
Is the node address set correctly?
Is the communication speed of the PLC and the slave unit the same?
Is the cable length within specification?
Is the wiring including cables and connections, correct?
Have the correct terminators been used?
Non-critical communication error.
(Check and change as necessary the items below, then restart.)
Is the communication speed of the PLC and the slave unit the same?
Is the cable length within specification?
Is the wiring including cables and connections, correct?
Have the correct terminators been used?
Performing self diagnostics at start up.
Descriptions
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No.EX##-OML0007