I am using PI Datalink with “Calculated Data in max mode” and have it set up as follows
Data Item = ‘Tag name’
Start Time = today
End time = -1year
Mode = Max
The code is working correctly by displaying the Max value for that tag
I need the program to ignore several dates but cannot find the correct expression for this.
I was using:
‘Tag name’ <> ‘1/05/2019’
Is there a way to express this?
Help would be much appreciated