I am getting -109 error for the point Ids. Due to which duplicate values are being stored in PI Data Archive. How can I resolve this error?
I would start off with this KB article: Request Rejected
KB01592 is the link does not come through One common occurrence is the cases where two identical interfaces are both running and they are not setup in fail-over.
Please take a look at KB01592 - Troubleshooting "-109 Value at This Time Already Exists" errors and if it does not address your question directly, then we would need more context on when the errors occur and to what tags. This error may very well be normal and could be ignored but it could also come from a misconfiguration.
Retrieving data ...