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Command Driven EM Faceplate Help

Hello,

I have a command driven equipment module that is used to unload fertilizer into tanker trucks.  Previously the three named sets were 'OFF', 'load from tank A', load from tank B'.  We are now constructing 'tank C' so I require a 4th command, which Delta V populated in control studio after adding it to the named set associated with it.  My issue now is that my faceplate no longer has any of the command SP buttons after adding the 4th command.  Digging into the script I see comments for code written for instances of 2-state device control and 3-state device control.

How complex is it to create a custom faceplate identical to the one I am using, but with 4 commands?  My only other option currently is to create a new EM using the EDC functionality which gives you up to 6 commands, allowing me to utilize the associated faceplate and detail for it. (This EM was created before we upgraded to V13 or had access to the enhanced function blocks).

Thanks

Cogan Stewart

• 14 Jan 2021 7:27 PM
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4 Replies

• Matt Stoner

  

  • 14 Jan 2021 10:03 PM

  Not sure people can answer the "how complex" because it all depends on what the current FP is, what/how it is configured on that, knowledge of displays and scripting the person making the changes.
  
  Sounds like to me you are using a FP that is meant for another type of module so it might get complex because the parameter names would be different.
  
  Try using the CDA_fp which is the Out of the Box EM FP that will support whatever the EM is supporting but it is different and doesn't have buttons for each command but a drop down list to pick the command and then a Run button.

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• Cogan Stewart

  

  • 15 Jan 2021 11:57 AM

  In reply to Matt Stoner:

  Thanks Matt. I already tried using the CDA_fp and it did populate all 4 of my commands. The issue with that was the sequence then got stuck at the point in which it pops up a prompt asking for the operator to enter a value. Although I had PROMPT, MODULE VARIABLES and OPERATOR options selected on the BTN section in control studio, when I used the CDA_fp it did not support that.

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• Cogan Stewart

  

  • 15 Jan 2021 12:32 PM

  In reply to Matt Stoner:

  Any reasons you can think of that the CDA faceplate would give me this issue? Is there something more I need to do to link the EM prompt to the faceplate?

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• Matt Stoner

  

  • 15 Jan 2021 1:14 PM

  In reply to Cogan Stewart:

  You will have to build this or copy from your other FP as the OoB FP doesn't have anything to support prompting. So it is a pick your poison as you are going to have to do something special either way.

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