AnsweredAssumed Answered

Event Frame triggering on Values change detection

Question asked by JF.URBIETA on Sep 28, 2017
Latest reply on Sep 29, 2017 by Roger Palmen

Dear all,


we have to solve the following problem : we should detect any change in a value within a non-determined period.

To give you more infos, we have some lab results (mainly Analog ones) which are raising in a event-driven mode, and we wanna notify people when these values are changing.

Right now, we are using the "HasChanged" function from PE in the trigger formula. We have a parameter for the observation delay of the HasChanged function, but we thought there are smarter solutions in order to save CPU activity.


That's my the question may be summarized by : On a Value change, do we have any boolean attribute related to the AF Attribute or the PI Point we can trigger on?