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Archived: Can VISA Communicate with Parallel Ports?

This document has been archived and is no longer updated by National Instruments

Primary Software: Driver Software>>NI-VXI
Primary Software Version: 1.0
Primary Software Fixed Version: N/A
Secondary Software: N/A

How does VISA communicate with parallel ports?  Are there default names that are used?  Is this something handled automatically or do I need to do this manually?

Before NI-VISA 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 later.

System Name Type of Port Default VISA Name
COM1 Serial ASRL1
COM2 Serial ASRL2
COM3 Serial ASRL3
COM4 Serial ASRL4
COM5 Serial ASRL5
COM6 Serial ASRL6
COM7 Serial ASRL7
COM8 Serial ASRL8
COM9 Serial ASRL9
LPT1 Parallel ASRL10
LPT2 Parallel ASRL11
LPT3 Parallel ASRL12
LPT4 Parallel ASRL13

Related Links: Example Program: Port and Memory Utilites for Windows
Drivers and Updates: VISA


Report Date: 10/01/1996
Last Updated: 05/06/2016
Document ID: 0Q0H595Q

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