CI 773F stops polling?I
I have an AC902F with two CI 773F. On the first profibus I have lots of frequency converters, and it works fine. On the other profibus I have some Eurotherm thyristor units, which works fine for 5-10 minutes, thereafter the units indicator for bustraffic on the thyristor units goes black. but the CI 773F still thinks its ok (All green indicators). If I unplug the bus from the CI773F, it still thinks its fine (?). If I restart cpu the communcation resumes again for another 5-10 minutes. It seems the CI 773F works fine for 5-10 minutes but then stops talking on the bus, and then also does not discover if I unplug the profibus from it. If I unplug the bus after a restart before the problem occurs the CI 773F discovers unplugged bus immediately.
Anyone have any suggestions?
Best regards Magnus Bergsten
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