Event structure

[Peter Saraiva]

Hello,

I want to execute an VI when an changement occured on my global variable.

Any idea on how I can do that with a event structure or other way ?

Thanks.

[P@Anand]

You can use the value signaling property of a control to fire the event programatically. So you can wire the Global to a control say a boolean to its value signaling property node. I am assuming your global variable as boolean else you need use a shift register to check with its previous value and fire the event.

[Peter Saraiva]

I'm not sure to understand, any example please ?

[GerdW · Accepted solution]

Hi Peter,

simply test for value changes and call your subVI when needed:

[P@Anand]

Check the attached example replace the Gloabl variable control with the actual global variable.

This explains about the Event triggering through software. But Gerd's solution is the very simple one you can go for that.

[Peter Saraiva]

Thank you all for your help,

Gerd's solution is more simple.

[paul_a_cardinale]

Perhaps something like this.