How to get more than 16 Hold Monitor conditions in PCSD Common Fail Monitor Composite

I am putting together a DeltaV Batch system in V12.3 using PCSD.  I have a unit with more than 16 defined "Hold" conditions (22).  The problem is that the PCSD Common Hold Monitor composite (C_FAIL_MON120) only allows for 16 conditions.

How can I properly add the additional HM conditions and get them to appear on the Unit's HM detail tab (or an additional tab)?

Thanks,

 

  • Dave,

    First you will need to convert the FAIL_MONITOR to embedded. To do this right click on the composite shown below.

    Now you are able to edit the FAIL_MONITOR composite and add the HM17-xx conditions, add the HM_17-xx boolean parameters, and also edit the CND_DESC action block if you want HM descriptions to insert Alias resolution values for the HM17-xx conditions.

    Now you have a choice, you will need to either create a new composite for the HOLD_ENG composite or drill down into the composite and override the HM1 and HM2 expressions.

    • If you will have more phases that will need this:
      You should make this a new composite by converting the HOLD_ENG to embedded, making the changes and then right click on the HOLD_ENG and convert to a new linked composite so you can just point to this new version on the other phases that need more HMs.
    • If this will be the only phases that will need this:
      Just drill down and edit the HM1 calc to support 1-16 and HM2 calc to do the HM17-32 by unchecking the "Use Default Expression from library object" box.

    The PCSD_UM_120_DT display will support up to 64 HM conditions without modification.

    If you have issues or further questions on this you can email me directly at [email protected].

    Regards,

    Matt

  • In reply to Matt Stoner:

    Hi Matt,

    Thank you for the answer, it was quite the simple process. As an added bonus, a C_H_32_MON120 version of HOLD_ENG already existed. This made that step much easier.

    Also, thank you for letting me know what the limits on the display were. That is good information to know.

    Thanks,
    Dave
  • In reply to dave_marshall:

    Dave,
    Oh yes, forgot that they created that composite and had it already in the composite folder.
    Glad you got it all working.Regards,Matt