izaias

Multistate symbol with AF attributes

Discussion created by izaias on Jul 31, 2012
Latest reply on Aug 1, 2012 by izaias

Hi guys,

 

 

 

I'm passing through the problem below.

 

I have an AF element with the attributes:

 

Flow: Flowtag (it’s a PI Point);

 

MaxProj: 50 (the maximum value the flow could reach, set manually);

 

 MaxHist: obtained using the flow tag with value retrieval method to get the max value that the flow tag has reached in its history. (TimeMethod=TimeRange;RelativeTime=-5y;TimeRangeMethod=Maximum)

 

So, Im trying to do a visual alarm in ProcessBook, using multistate symbol, based on some calculations, using those AF attributes.

 

I would like to use something like:

 

IF  Flow.tag > = MaxHist and < MaxProj then “multistate symbol get yellow”

 

Else if Flow.tag >= MaxProj then “multistate symbol get red”

 

Else “multistate symbol get green”

 

 

 

But Im not finding a way to implement that logic in a symbol. How should I do that?

 

 

 

Thank you.

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