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 matt.stoner@emerson.com.

    Regards,

    Matt