1 Reply Latest reply on Jan 10, 2017 7:53 PM by Jerome Lefebvre

    [PI Event Frame] How can I create PI Event Frames from a temperature trend.


      Dear Forum Members,


      the picture below shows a temperature trend.


      From this trend, I need to create the following Event Frames hierarchy:


      Profile (Parent EF)

      |_ Step 1 - CH1  (Child EF)

      |_ Step 2 -PI      (Child EF)

      |_ Step 3 -CH2  (Child EF)

      |_ Step 4 -MHT  (Child EF)

      |_ Step 5 -Ref    (Child EF)


      The Step 1 increases until 150°C.

      During the Step 2, the temperature is around 150°C.

      The Step 3 increases until 385°C.

      During the Step 4, the temperature is around 385°C.

      During the Step 5, the temperature decreases until 87°C.


      With a PI Analysis, I am able to determine when the step 1 starts and finishes, when the steps 2 and 4 starts, when the steps 3 and 5 finishes.

      If I determine when the steps 2 and 4 finishes, I will be able to find when the steps 3 and 5 starts and vice versa.

      My difficulties is to determine when the steps 2 and 4 finishes or when the steps 3 and 5 starts.


      So how can I finishes and starts a PI Event Frame at the moment where the temperature increases (step 2 to step 3) and decreases (step 4 to step 5)?



      Best regards,