subVI xy graph

[CharlyStardust]

Hi there,

I built a XY graph that plots step by step 3 curves now I'd like to make a subVI from it to make a pop up window to get more room on my front panel.

I tried to simply define the xy graph as an output terminal but when used as a subVI the graph is updated only at the end of the subVI.

Thanks,

Charly

[BillMe]

Supply the sub-vi with a reference to the graph indicator. The graph will update as the sub-vi is running.

Message Edited by Bill@NGC on 09-05-2007 09:50 PM

[CharlyStardust]

Hi Bill@NGC,

It works great thanks for that. Where do you get the refnum? I have LabVIEW full development system 8.5.

I also would like to update inputs for my subVI do I have to use the same trick?

Thanks

Charly

[CharlyStardust]

How do you make the stop button working in the subVI?

[BillMe]

To create a reference to a control or indicator, simply right-click and choose Create...Reference. You would do the same thing with your STOP button in the calling VI so the sub-VI will recognize when its pressed.

[CharlyStardust]

The subVI should read the value from the boolean stop button in the calling VI as specified by the bool refnum but I have an error that confuses me

can you see what is wrong in it?

[BillMe]

Change the mechanical action of your STOP button to "SWITCH WHEN RELEASED" rather than "LATCH WHEN RELEASED" and then drag a new reference onto your sub-vi and create a new VALUE property node. This has to do with race conditons (see LabVIEW help).

[CharlyStardust]

All right I was close! thank you for help

[jtc]

Hi Charly,

Sorry for chiming in to your old thread. I am looking for some reference on how to make a popping up XY graph. I came accross of your thread but the VI's you attached were in LV8.5. Would it be possible if you can resend them using LV8.2?

I would greatly appreciate. Thanks.

John

[CharlyStardust]

Hey John,

Hope these VIs will help you. I saved them for Labview version 8.2.

Charly