VISA parallel port communication on WinNT 4 and beyond

[rtorchia]

I have not seen a post that says I can get reliable parallel port through the VISA communication layer. VISA is advertised to abstract GPIB, parallel, serial, and ethernet protocols. I want to write some C++ code and use VISA to write to various devices that support all of these protocols. I am concerned that VISA may not be a good choice for parallel port communication. We are currently using AccessHardware for out pport driver.

[Kim L]

Hello,

Prior to NI-VISA version 1.1, parallel port communication was not supported. Starting with NI-VISA 1.1, ASRL10 through ASRL13 are automatically mapped to LPT1 through LPT4, allowing you to communicate to a parallel port with VISA, just as you would with a serial port. Upgrade to NI-VISA version 1.1 (or higher). For information about configuring serial and parallel ports in VISA, go to:

http://digital.natinst.com/public.nsf/websearch/862567530005F09C8625671D006C6ABC

Good Luck,

Kim L.
Applications Engineer
National Instruments