reference to Parse State Queue

[Jim C]

I want to read the Current State, Remaining States and Arguments indicators from the FP of the Parse State Queue vi in my JKI State Machine. I can't figure out how to get a reference to the VI. Can you help?

 

I've looked and it doesn't appear to be in the App.All VIs In Memory list.

I tried to modify the VI to return a reference to itself. No luck.

I can see all instances of it when I set the FP to show when called, but I have some JKI-SM processes that I'm not interested in.

 

Alternately, can you suggest how I can monitor this information?

[Jim Kring]

Hi Jim,

 

I'm really sorry for the long delay in response. You asked a relatively non-trivial question, so it wasn't one that could be answered quickly.

 

Here are my thoughts:

 

Parse State Queue is reentrant, and LabVIEW doesn't provide a super-easy way to get the references to instances (a.k.a "clones") of reentrant VIs. I think what you would need to do is get a VI reference to the VI that contains the JKI State Machine, and then traverse its block diagram for GObjects of type "subVI" (using "vi.lib\Utility\traverseref.llb\Traverse for GObjects.vi" -- see here for tips from Darren). You would can then get the instance/clone VI reference from the subVI reference, check if it's VI.Name is Parse State Queue and then get it's Front Panel control references.

 

Whew... that was a mouthful

 

Let me know if you have any questions about this. I'm happy to help.

 

Thanks,

[Jim C]

Thanks for answering. I did this (snippet) but it didn't work. I don't get any errors, it finds the SubVI and I can even open the Front Panel but the reference isn't to the one This VI is using. The Get Control Value nodes don't show anything. Did I misunderstand your intent or is there more to this?

 

Jim