Greg--
I just want to verify, this motion device doesn't need a controller. It is essentially a stand-alone instrument where you'll just send commands for whatever motion you need it to preform. Is this correct?
If so, the driver that will allow you to send commands to your ports is NI-VISA. I think what you are looking for, or the best option, would be if there is an "Instument Driver" for this device. Instrument drivers are packages of all the commands you would send using VISA. I've looked and cannot see one on our website. If we do not have it, your best bet is to contact the manufacturer and see if they have anything.
If you cannot find an instrument driver, you will still be able to communicate to the instrument manually using the VISA VI's and the command set for your instrument. The best way to see how to do this is to open an example from the NI Example Finder in LabVIEW. Go to "Help>>Find Examples" then Navigate to "Hardware Input and Output>>Serial" folder. I would suggest looking at the code for "Basic Serial Write and Read". If you have any questions let me know.
Regards,
John H
Applications Engineer
National Instruments