Running different VIs in parallel

[s]

I'd like to have one VI call another VI and have both of them execute in
parallel (instead of the wait until finished) sub-vi approach that is
happening now. Is this possible? I'd like to be able switch back and
forth between VIs while they are both open.

Thanks,

[Mads]

Call the VI dynamically using an invoke node and the run method (open a reference to the VI using the open reference function, wire the function to an invoke node, select the run method..etc), it allows you to set a wait until finished flag to false...

[Tom_Hawkins]

What is it that stops your calling VI from continuing to run while the subVI also runs? LabVIEW code only waits for a subVI call to finish if you have made it do so by some kind of data dependency.

If your problem is that you need to pass data to/from a running subVI, you might want to look at using queues, notifiers or globals.

[Ben]

Hi s,

Check out the example I posted here. It demostrates exaclty how to control this type of functionality.


http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=137&HOID=5065000000050000001457010...

Have fun!

Ben


Ben Rayner
Certified LabVIEW Developer
www.DSAutomation.com

[s]

I have a button on my main.vi. I have an event structure on the
diagram. When I get the button->value change event, I execute my sub_vi
by dropping the sub_vi on the diagram in the event structure. I assume
the main.vi is waiting for that sub_vi to exit or return because main.vi
doesn't process events until I close the sub_vi. I'd like to be able to
switch back and forth between the two vi's and have them process events
as I make them...

tmh wrote:
>
> What is it that stops your calling VI from continuing to run while the
> subVI also runs? LabVIEW code only waits for a subVI call to finish if
> you have made it do so by some kind of data dependency.
>
> If your problem is that you need to pass data to/from a running subVI,
> you might want to look at using
queues, notifiers or globals.

[s]

Thanks for the example. I implemented your approach and it works right
except the sub_vi front panel doesn't close when I hit the exit button
on the sub_vi's front panel. It stops but does not close it's front
panel. Is there a way to make it close it's front panel when I exit?

thanks,

Ben wrote:
>
> Hi s,
>
> Check out the example I posted here. It demostrates exaclty how to
> control this type of functionality.
>
> http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=137&HOID=5065000000050000001457010...
>
> Have fun!
>
> Ben
>
>
> href="http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=261&HRedirected=True&HUser...

> > Certified LabVIEW Developer
> www.DSAutomation.com

[Ben]

Yes!

In the sub-VI's case where it is going to stop, have it open a reference to itself, set the front panel as closed, and then close any refnums that where open.

Ben