RT Network Shared Variable and Visa Serial Instr class

[Gary_H]

Hi,

I'm using Labview 2009 SP1 with the RT module. I've had no problems creating a RT Target application and a Host PC application which are interconnected using Network Shared Variables, until I came to the COM ports fitted to the RT Target (PXI Embedded Controller and 2 x 4 port COM cards).

I can configure and use the COM ports in the RT Target application providing I use constants to define which COM port to use, i.e. VISA OPEN function accepts hardcoded "COM2" , (VISA Serial Instr class).

But I want to pass the COM Port resource name from my host application. 

Is there a suitable Network Shared Variable I can create ? or how do I change the string value (COM Port name) of the VISA Serial Instr class variable in the RT Target application ?

thanks,

Gary.

[Liam_A]

Hi there Gary,

Thanks fot the post. I think I have found something that may be if use to yourself.

http://labviewwiki.org/Functional_global_variable

This is the functional global variable.

Take a look at it and let me know what you think!

Many thanks,