labview shared variables in VBA or Visual Basic

[Stumpfi]

Hi,
is it possible to read/write a labview shared variable from VBA or
Visual Basic?
How does it work?
Where can I find a code example?

Thank you!

Greetings
André

[TCPlomp]

Yes it can,

i'm not familiar with shared variables, but you can address them via an OPC server (i'm not familiar with those as well) so no code from me...

Ton

[Justin D]

Andre,

You can use simple datasocket protocol to read from and write to shared variables.  The format for the datasocket url is like this...

psp://<ip address of variable host>/<variable library name>/<variable name>

or for example

psp://localhost/TestLib/TestVariable

I've used this before to access shared variables in LabVIEW 7.1 since shared variables are a new feature in LabVIEW 8.0.  So this should work in the same way using visual basic.

I hope this helps,
Justin D.
Applications Engineer
National Instruments