Emerson Exchange 365

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How to move a value?

How can I move a value of flow totalizer at particular time?

Samrat Singh

• 14 Mar 2020 2:41 PM
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2 Replies

• THENNARASU R

  

  • 17 Mar 2020 9:15 AM

  Use TIMER, ACTION or CALC Block
  
  1. Create a Output Parameter "FLOW_STORE"
  2. Add TIMER Block and set a specific time
  3. Add ACTION Block and write expression like
  IF "Timer Output Parameter" THEN
  FLOW_STORE := Totalizer value;
  END IF
  4. once complete, click the "Parse" button. error must be zero then only your expression is fully correct.

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• gamella

  

  • 17 Mar 2020 10:08 AM

  As "a particular time" do you mean a TOTAL value from the past is required???
  If so, you can use a DT block (Dead Time function block). Wiring INTEGRATOR block OUT into DT/IN and setting desired delay X into DT block provides TOTAL value X seconds in the past.
  With this you don't have to wait for X time intervals to get a new value. Notice that DT supports download without resetting t's critical values so you don't need to wait for X time after a download to get first "good" value.
  DT block also provides some useful functions, as FOLLOW_IN. When this is set to TRUE, DT/IN is passed to DT/OUT without delay, allowing to activate delay programatically. (Check books online to get better understanding on Dead Time Block(

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