Red crosses over conducting equipment when changing picture in operator workplace (IEC communication)

As the title says, i have a problem with red crosses ove the conducting euipment showed in the operator workplace.

The red crosses are shown when i change from one picture to another in the operator workplace. The red crosses or bad status are showed in a few seconds, and then the connection change to good again.

It seems to be a problem with the status update when changing picture, but apart from that i have no clue on why these status goes to bad in a few seconds in the operator workplace.

Does anybody have a solution to this problem and can explain what is causing this problem?

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mkingemann Rank: 460

Asked 4 years ago

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Dear mkingemman:

I didn't quite understand your problem. When you change screens, the equipment get a red cross (bad status) and within 2s goes to "status OK" again. Is that it?

Could you just confirm my understanding, and then I can try to help you!

Regards.

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by mkingemann Rank: 460 on 1/19/2015 1:02:15 AM | Like (0) | Report

Yes that is the problem.

by lhmonaco Rank: 320 on 1/19/2015 1:04:36 AM | Like (0) | Report

Try following Subrat suggestion: reduce the Update rate on Control Connection Aspect of the respective conducting equipment. Do it for the variables that are used on the graphic element that is shown on the graphic display (eg. CBPosition, Local/Remote status, etc). Or if you don't want to overthink it, reduce to 500ms to all variables.

by mkingemann Rank: 460 on 1/19/2015 1:22:26 AM | Like (0) | Report

When i change the update rate to 10 ms, the bad indication disapears faster, but it's still shows bad indication.

by lhmonaco Rank: 320 on 1/19/2015 1:29:18 AM | Like (0) | Report

I am not sure, but I think this is the standard behaviour of the OPC Server: it will look for connection once the variable is requested by the graphic display. That's why it shows as status Bad. In order to double check it, please write a question to ABB Technical Support Line.
But is it generating alarms on the system?

by mkingemann Rank: 460 on 1/19/2015 1:36:16 AM | Like (0) | Report

No, it is not generating any bad status alarms. All the connections are working fine.

by mkingemann Rank: 460 on 1/19/2015 1:42:36 AM | Like (0) | Report

We have many other signals that are communicating via the OPC servers. For all the other signals, we do not have these problems. It is only for the IEC61850 signals.
But thanks for the answers.

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