Showing unqiue front panel for multiple instances of subVI call

[glstill]

Hi,

I have a subVI that looks at a 2-D array of data and plots some graphs.  I call the subVI and it opens the subVIs front panel to display the plots.  Now I would like to put the subVI in a for loop and call it several times with different 2-D arrays.  I am trying to figure out how to make several instances of the subVI's front panel appear. Essentially a front panel for each 2-D array.  All I can get it to do is to open and close the UI for each subVI call and for the last array display the UI for that data.

I tried making the VI re-entrant and selected the option to pre-allocate memory for each clone.  Maybe this is working, but I need the front panel from each subVI call to stay open.

Thanks,

Gary

[Ben]

In this thread I posted code that spawns a bunch of FP to demo how to generate occurences but you can ignore that part.

looks like this when it runs.

Ben

[nathand]

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glstill wrote:

I tried making the VI re-entrant and selected the option to pre-allocate memory for each clone.  Maybe this is working, but I need the front panel from each subVI call to stay open.

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This won't work if you're calling the VI in a loop.  You'll get one clone for each time the VI appears on the block diagram, not for each time the VI is called.  A VI inside a loop only appears once on the block diagram so you only get one clone even though the loop runs multiple times.  If you need each loop iteration to spawn a new copy of the VI, you'll need an approach like the one Ben suggests, although it's now recommended that you use a reentrant VI instead of a template.

[glstill · Accepted solution]

Thank you both for the help.  I used the Open VI reference and Call by Reference and created a stricly typed VI reference to call the subvi dynamically.  Attached is a screenshot of the block diagram.  The link below guided me in created the stricly typed VI reference required by the "reference" input of the Call by Reference function.

https://www.ni.com/docs/en-US/bundle/labview/page/creating-a-strictly-typed-vi-reference-to-call-vis...