Emerson Exchange 365

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DeltaV Live parameter iteration.

Hello everyone.

I want to read or write to Layout parameter concatenated from text and variable.

I have parameters Lyt.EM1CMD up to Lyt.EM20CMD.

I know it is incorreect but I would like to do something similar to this ("i" is variable):

('Lyt.EM' + i +'CMD') = 1

Is it even possible in DeltaV Live TypeScript?

Jacek

• 16 Mar 2020 3:55 PM
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3 Replies

• Matt Stoner

  

  • 17 Mar 2020 6:58 PM

  Yes it is possible!

  I took a button and put the below script to read the EM1CMD variable (in my case a string) and updated the Button Label with the value

  const i:number = 1; //Set the start value
  Dsp.Button1.Label = (Lyt as any)['EM' + i + 'CMD']; //Update the button text with EMxCMD value

  Then I took another button and put the below script to update layout variable with different text

  const i:number = 1; //Set the start value
  (Lyt as any)['EM'+i+'CMD'] = 'Command ' + (i + 1); //Update the Variable EMxCMD Text

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• Jacek

  

  • 17 Mar 2020 9:48 PM

  In reply to Matt Stoner:

  Matt, you're a star!
  It works perfect.
  I really appreciate your help.

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• Matt Stoner

  

  • 18 Mar 2020 12:42 PM

  In reply to Jacek:

  No problem, if the variable was on display you would use (Dsp as any) or if it was a variable on an object on the display it would be (Dsp.ObjPathName as any)

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