Thank you for your input. After some searching, I found that the device uses RAW mode communication and that I did not have the necessary information that you described below. I all but gave up on my attempt. If I understand you correctly, I can still communicate with the device with a non USB VISA write vi. I'll give it a try.
Thank you again. Jeff ScottieB wrote: > Jeff, > > I understand that you want to write out of your USB-parallel, but it's > not going to be as simple as writing to a normal parallel port. You > probably received drivers with your USB-Parallel adapter that allows > the adapter to appear as though it is a standard parallel port (like > LPT2) under Windows. That is going to be the correct way to do what > you are trying to do, as then you can just use it in a VISA write just > like a normal port. > > The other way, writing out the USB port, requires knowing the > manufacturer's device ID, what sort of pipes they use for > communication, and what sort of data the adapter expects before it > will output a set of bits on the parallel port. > > Hope this helps. > > Scott B. > Applications Engineer > National Instruments
