How to determine Communication error in IAC between 2 controllers?

When using MMS read blocks we can get an error bit from "Valid" if there is any communication error. In IAC if there is any communication error or Control network breakdown between only one of its slave controllers. How that error can be derived in IAC for display or any other application purpose?

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kamal.pathakamuri Rank: 1789

Asked 18 days ago

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Use the GetCVStatus block.

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by kamal.pathakamuri Rank: 1789 on 2/2/2020 10:18:15 PM | Like (0) | Report

When I am trying to add this function block "Get CV Status" in Single control module or program where communication variables are configured. I am getting program compiler error as "Error 1059: No matching overloaded function" What is the reason for this?

by Stefan Stromqvist AKS expert

Rank: 1 on 2/2/2020 11:08:41 PM | Like (0) | Report

Don't know, if I were to guess, it is due to how you connect the block. Does it fail with the same error if only one input (the IAC variable) is connected?

by kamal.pathakamuri Rank: 1789 on 2/2/2020 11:11:13 PM | Like (0) | Report

I cleared that error stefan, that error was due to not connecting any variable to "Status" Output of that block. Thanks.

by kamal.pathakamuri Rank: 1789 on 2/5/2020 12:12:00 AM | Like (0) | Report

How to select or insert a Non-SIL Variant GetCVStatus function block. By default it is giving SIL Variant? Any idea? BY using default one my non-SIL Application is denied from downloading to a controller.

by Stefan Stromqvist AKS expert

Rank: 1 on 2/5/2020 12:41:51 AM | Like (0) | Report

Sorry, that is beyond my horizon. Please post a new question - maybe someone else at AKS can answer.

by Stefan Stromqvist AKS expert

Rank: 1 on 2/5/2020 12:42:22 AM | Like (0) | Report

The example I made is running in a non-SIL application.

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Stefan Stromqvist AKS expert

Rank: 1

Answered 18 days ago

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How to determine Communication error in IAC between 2 controllers?

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