IAC redundancy error

Hi guys,

I have a problem regarding the IAC communication error between standalone AC800M PM865 HI redundant controller (programmed by Control Builder Safe v6.0 - Controller 1) and two AC800M redundant controllers (PM864 - Controller 2 and PM865 HI - Controller 3) integrated into 800xA v5.1.

So, Controller 1 has a SIL3 and Non-SIL application (both applications communicate via IAC), and also controller communicates with Controller 2 Non-SIL application, and Controller 3 SIL-3 application. Controller 2, and Controller 3 are used for presenting Controller 1 data on 800xA 5.1 DCS. Controllers are connected through a redundant Control Network.

IAC communication through primary network works well, but when I turn off the primary network and try the IAC communication through secondary network, the IAC communication is lost. So when I restore primary network, and connect to controller through Control Builder Safe, I notice that IAC connection is completely lost and it doesn't restore itself automatically. So then I have to turn off and turn on both redundant controllers (Controller 1), and the communication is restored again. This doesn't work if I make a Cold Application download.

So in the attachments I'm sending you Controller 1 logs and some screenshots in hope that you'll know the answer.

Thanks in advance!

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hrksa Rank: 175

Asked 24 days ago

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Answers

Hi there,

As far as I can understand your problem statement, I believe this problem is same as defined in ABB Bulletin 3BSE047421D0189 (attached). Please confirm if this bulletin matches the defined behavior.

If you are not satisfied, you can always contact your regional support center for technical support;

Hope this helps. :)

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