How to click on a button that is located in another vi

Hi all

I'm stuck with a problem

I have two vi. A MainVI and a Subvi. The Subvi is located in the MainVI. VI Sub is like a continuous loop and can be stopped only by pressing a STOP button on the control panel front of the Subvi.

I need to control this STOP button on the front of the MainVI. But the problem is that, until that the Subvi is running completely, any changes made on the MainVi will be read.

The following methods do not have

Attempted to draw on the STOP button on the Sub - VI as terminal.

Using global variables.

Y at - it something like reference variables that can accomplish this task.

Any help will be much appreciated.

In the main VI create a reference to the control (right-click Create Ref).

Son of this ref in the Subvi.

Inside the Sub - VI use a property node > value to read the State of the button for the most part.

Please note that you must READ the property node to get a present value.

Ben

Tags: NI Software

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