How to return out of a subVI into a calling VI and not stop the calling function

I am writing a program that consists of a calling VI and a sub VI. I want the calling function to be running continuously and be able to trigger the sub VI (via voice activation). I want the sub VI to time out automatically after 10 seconds and return to the calling (master) VI, which will continue running until the sub VI is called again.
I found a way to time out the sub VI using the "stop" command, but this quits the calling VI too, which cannot happen. I know there is no "return" or "soft stop" in LabVIEW, but does anyone know a way to do this?
Solved!
Go to Solution.

I am a student working on a project involving voice activation. the overall idea is to have a person say a command (like go or something) that then gives them a 10 second window to say other commands and have them recognized by the program. The idea is to eliminate false positives by nesissitating a calling command that is not spoken very often, and then having 10 seconds to activate what we are trying to vocally control. I hope that helps clarify the intent of the program.
I was using a flat structure just because I sucessfully got the sub VI to time out using a flat structure with a boolean false on one side with a wait of 10 seconds, then a boolean true on the other that triggered a stop. this successfully ran the sub VI for 10 seconds and then stopped it; however, it also stopped the calling VI which is my problem. right now, I have a while loop in the calling VI that contains an elapsed time timer and the sub VI and it works (kind of). it sucessfullly calls the sub VI, but not for any given amount of time. it changes each time it runs; sometimes it stays running for 10 seconds before returning to the calling VI, sometimes it just flashes, and sometimes it just doesn't return. I am also experimenting with mathscript code.
My partners and I are all new to labVIEW, so if something seems less than optimal, it is because of our inexperience.
Thanks again for your help.

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How to return out of a subVI into a calling VI and not stop the calling function

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