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Analysis expression error

Question asked by mikael.gidstedt on Mar 16, 2017
Latest reply on Mar 29, 2017 by Asle Frantzen

Hi all!

I want the following expression to give the result 1 if a tag has stopped changing/collecting values during 10 or more minutes.

 

if TagVal('UPP_25NR40A005_C2','*') = TagVal('UPP_25NR40A005_C2','*-10m') then 1 else 0

 

The results are written to UPP_25NR40A005_C2_larm.

It does give the result 1 at times but not when you would expect it. The below image shows a period of 6+ h and this should give the result 1 but it is still zero!

Why?

 

BR/Mikael

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