updating a vi while open

[Jim P]

I want to have a main vi call a second vi.  The second vi has 2 tabs, first tab to transmit data & the second to receive data.  I want the receive data to be updating the entire time the second vi is open.  How can I do this?

[G1L]

Can you transmite data while receive data?
Are you using VISA, TCP/IP, or what?
Do you need to make this only when the second vi is called, right?

[SamboNI]

Hi Jim,

It sounds like you want to update the top level VI while the subVI is executing, and both of these are on the same machine. You can accomplish this with control references and property nodes.

Please refer to this Developer Zone document, Control References: Overview.

This material is also covered in our LabVIEW Basics II class.

Hope that helps,
Sam