Hello All, We are trying to implement multimaster instance. Using the CI854 card as a master on the bus. It is communicating with slaves as s800 etc through bus. We need to add a DELTA V M series profibus card on the same bus. But it can be only master as CI854. As I read from docs CI854 supplying multimaster. but couldnt find any example how to do it. Any suggestion ?
Actually using DP DP couplers but they have limited data so we need to another way.
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As far as I know it is not allowed to use any other master in parallel with CI854 (both DPV0 and DPV1).
It is not a limitation of CI854. While CI854 conforms to the Profibus standards fully, many slave device vendors don't and that causes problems on the bus.
However it is better to get an official statement from ABB product management on where this stands. Log a support case asking this question. Btw which document are you referring to?