how to run vi programmatically

[ivelson]

Hi everybody,

how can i run the vi programmatically? i cannot find this "run" function in select class>VI server>vi...

well, i want to use this function in web publishing tool. so i can make the toolbar (run, abort, & vi logo) invisible and run and stop program in my own vi.

thanks for sharing your knowledge...

[Dennis_Knutson]

It's a method (Invoke Node).

[ivelson]

hi dennis,

thanks for the help.. but it seems i still cannot figure out how to use it. well, its the first time i will used this function. the error below shows everytime i push the "run" button in menubar. but i cannot make the vi running just by triggering the button i made in the front panel. kindly need your help to figure out this problem of mine.

thanks

[Dennis_Knutson]

That makes no sense. You would use the method to run another VI - not the VI where you've placed it (and which is already running). To run a different VI, you need to pass a reference to that other VI by using the Open VI Reference function.

[jcarmody]

Here's a video about VI Server References from an NI R&D engineer.

[SimonH]

ivel,

The way you are approaching your application will never work.  You can't write code in a VI to start that VI running as the code that you right will never be executed.  As such a VI can not start itself when a user clicks on a front panel control like a button.

Is it possible that you could have your VI running all the time and clicking the button moves execution from an idle state into an execution state?

Regards,

Simon

[ivelson]

hi simon,

now i see. thanks for clarifying. my program is quite huge, how can i make an idle state & execution state? thru combination of case structures & while loops? btw, i'm still a beginner in LV programming so i ask you guys for more patience. sometimes i cannot figure out things easily especially when i encountered it in the first time.

thanks,!

[ivelson]

to dennis,

thanks for explaining the "run VI" function in invoke node. i now figure out but not yet apply its function.

to jcarmody,

thanks for the very useful links!.. i'll go thru that after...

[smercurio_fc]

---

@ivel wrote:

hi simon,

now i see. thanks for clarifying. my program is quite huge, how can i make an idle state & execution state? thru combination of case structures & while loops? btw, i'm still a beginner in LV programming so i ask you guys for more patience. sometimes i cannot figure out things easily especially when i encountered it in the first time.

thanks,!

---

If your progam is "quite huge" and you are asking about how to make an idle and execution state, this tells me that you are not using a good design architecture. I would recommend that you read up on application design patterns, especially the state machine. Note that the design patterns are distributed as templates with LabVIEW, and can be accessed/created via the File -> New... menu item.

[Chon.Mech]

Your using "TB.Visible" what you should be using is "FP.Open".  

This like has some example code for what you want to do.

https://decibel.ni.com/content/docs/DOC-3413