Interpretation of System Message in AC450 On-line Builder


After an upgrade of an 800xA system to v6.0.3 where one AC450 is connected I receive a system message every 10 minute in On-line Builder. See attached files.

The only thing I've done code wise in the AC450 is to add 8 DS but they are not activated.

So I need help with the interpretation of the System Message.

/Thomas Karlsson

 System Message 100.png

 System Message 101.png

 System Message 102.png

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asked 16 days ago



MVI is Multi Vendor Interface, MviStb messages come from a PLC interface usually. MviSTb1 is PLC interface 1. Check the manual that comes with the interface configured on board 7.

eg if this is a Modbus interface on CI532 then the trace number for H'70019 is "Illegal data request". The register address is 3 and the number of registers is H'A43 (which is far too many). If its not a Modbus link you'll need to check the relevant manual for error message descriptions.

Are you sure this is a new message ?

Rob Lyon   

answered 16 days ago


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