I have a CLX L72 that I want to monitor a PLC5 PLC (L40E) and determine whether or not it is up and running.
I can get the PLC5 to let the CLX know its up via messaging triggered by the first scan bit S:1/15 but its knowing when the PLC5 is off. There is no controlled shutdown, just off like in a power cut.
CLX is currently reading data from the PLC5 so I'm currently using the error bit but as the messaging is sequenced the error bit is reset every cycle.
Any ideas?
PS
All comms is ethernet based.
I can get the PLC5 to let the CLX know its up via messaging triggered by the first scan bit S:1/15 but its knowing when the PLC5 is off. There is no controlled shutdown, just off like in a power cut.
CLX is currently reading data from the PLC5 so I'm currently using the error bit but as the messaging is sequenced the error bit is reset every cycle.
Any ideas?
PS
All comms is ethernet based.
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