Skip to Content
-1

Error while using PCo Store query

"Tag_Name: Multiple tags found; unable to resolve tag Tag_Name" while storing data to PHD system.

We are trying to store few tag values in PHD(Historian database) having OPC UA HDA connection. Sometimes the values gets updated on time but sometimes it gives the mentioned error. the frequency of this error is random.

*Tag_Name is the name of the tag that is configured in the Plant Information Catalog of MII

capture.png (190.9 kB)
Add comment
10|10000 characters needed characters exceeded

  • Follow
  • Get RSS Feed

2 Answers

  • Best Answer
    May 15 at 10:21 PM

    Looks like you have the same tagname in folder MESPHD and in the root. My guess is that one or the other needs to be removed. I am not a PCo expert (not anymore), so hopefully someone with more recent experience can review the logs and confirm my theory.

    Cheers, Mike

    Add comment
    10|10000 characters needed characters exceeded

    • Mynyna Chau SIDDIREDDY MOHANA SAI KRISHNA REDDY

      If the answer by Mike was helpful, please mark his answer as accepted. If you need further support by community members, please share more details in a comment to your question. Thanks and best regards,

      Mynyna (Moderator)

  • May 14 at 12:38 PM

    Without seeing more detail, my first guess is that you have duplicate tagnames between MII and the historian. When trying to resolve those tagnames, sometimes it gets the right one and sometimes not.

    Check your entries in the Plant Information Catalog of MII and also the tags in the historian. The system is telling your that there are duplicates somewhere. Or a duplicate reference in the PIC in MII. Since some of these resolve successfully, compare the listings in both historian and PIC for the ones which resolve and the ones which do not.

    It looks like there is something consistently wrong with how the two systems are configured to work together.

    Regards, Mike

    Add comment
    10|10000 characters needed characters exceeded