SLC5/05 1747-L553 intermittent loss of communication
Has anyone ever experience an intermittent loss of communication between the SLC5/05 1747-L553 PLC and a computer which can only be recovered by cycling power on the PLC?
We are experiencing a communication loss sometimes once a week, sometimes more...and it is occurring on three different PLCs.
A PLC specialist or contractor claims that the loss of communication can be caused by the PLC firmware.
The specs from the PLC are as follows:
PLC model: SLC5/05 1747-L553
CAT: 1747-L553 SER C PROC REV 5
OS# 1747-OS501 SER C FRN 9
Has anyone experienced this type of loss, and if so what would be the best course of action to take?
Is there a sniffer that can be employed to determine if the comms loss is caused by the PLC, by the computer, or by something else.
Please advise.
Thanks!