Hello Todd K.,
You will need to look in the NI-VISA example file for DotNET 4.0 examples to perform simple read and write to see how to do it. You will then need to look up the communication protocol for that device to send the specific strings needed to control it. There does not seem to be any instrument drivers available for your device on www.ni.com/idnet, but feel free to suggest for them to be developed at that site.
Regards,
Jeff L.