Hi,
1) You can use LabVIEW to send the SCPI commands to a device. The GPIB functions (or the VISA function) transfer character strings to the device. The SCPI commands are just strings, so the driver would treat this commands in a special way. You would have to write (program) what SCPI commands to sent to the instrument.
2) You can also communicate to a LabVIEW application using Visual Basic. There are several options. yoiu can build a DLL and use it in VB. Use ActiveX. I would suggest doing a search on www.ni.com for "labview" "Visual Basic" (also "dll"). Here's an article I found, but there's also examples on the web:
http://digital.ni.com/public.nsf/websearch/862567530005F09E86256843004469C8?OpenDocument
Hope this helps.
DiegoF.
Natio
nal Instruments.