Customer Support, Profibus Fault on Case Packing machine

Requested to try and diagnose an intermittent Profibus fault on an ETT case packing machine. With only 6 nodes on the Profibus network the machine would stop randomly with a profibus error while in motion. Using some trap code inserted into the PLC OB’s and a screwdriver, the fault was tracked down to a damaged Profibus Connector making some nodes drop off the network due to the vibration. This was replaced and the machine was put back into service.

Dave

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