I did some looking on the internet and was able to find one manual for the V550, however it did not include any programming information other than setting up the serial port. It appears that it should not be too difficult to communicate with the instrument via VISA Writes and Reads or the Instrument I/O Assistant in LabVIEW 7.0 or later. Contact the vendor and see if they can supply you with the instrument command set. I would be happy to help further at that point. You can then share your driver with the LabVIEW community by submitting it to the Instrument Driver Network (ni.com/idnet).
Jason Hobbs Instrument Drivers
