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I have SST PFB CLX scanner, it has 41 slaves with 2 dp-dp coupler and 2 repeaters.
this happened after some welding job of our mechanical staff. the following day profibus scanner showing, COMM led is flashing green/red with 1 sec interval and SYSTEM led is off.
It was interesting and confusing, if I will load the original configuration the scanner will fails immediately, so I did some isolation, 1 by 1 slaves is communicating and without error and I tried to load without 32 slaves then network works fine, so I thought it might be the isolated slaves giving problem, unfortunately if I will load the slaves and remove other slaves also works fine.
it was really confusing and annoying so difficult to pinpoint what was the real cause.
I post it here, hoping to get some input and might somebody experience the same.
Thanks for reading.
this happened after some welding job of our mechanical staff. the following day profibus scanner showing, COMM led is flashing green/red with 1 sec interval and SYSTEM led is off.
It was interesting and confusing, if I will load the original configuration the scanner will fails immediately, so I did some isolation, 1 by 1 slaves is communicating and without error and I tried to load without 32 slaves then network works fine, so I thought it might be the isolated slaves giving problem, unfortunately if I will load the slaves and remove other slaves also works fine.
it was really confusing and annoying so difficult to pinpoint what was the real cause.
I post it here, hoping to get some input and might somebody experience the same.
Thanks for reading.