HMI Errors
Dear All,
ABB 800xA 5.1.1. We have redundant OPC servers and redundant AS along with 4 OWS. At server level everything seems OK but the problem is that some of the screens on 2 of the OWS are displaying some OPC tags as bad data quality however same tags on other 2 OWS are displaying good data. Please advise.
Thanks,
RH.
Voted best answer
Check quality seen in OPC server nodes (call same display, try ”Subscribe for live data”, use 3rd party OPC client, etc).
Check OPC server configuration - maybe one of them is having some issue?
What OPC server/brand of PLC in trouble?
Answers
Usually that means the tags are bad on ONE of the connectivity servers.
- If using AC800M and full xA Integration check the OPC server configuratoin on both CS
- If using PLC Connect, then look for errors in the Log files on each CS.
Check your affinity settings or simply have a look at the Afw Service Connection Status on the affected clients. You will see with whitch CS they communicate. Shut down this CS, the client will switch to the other one. If all is fine now then you have found the "bad" CS. Maybe a reboot solve your issue otherwise you have to investigate that CS.
/Erik
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