Accessing Parallel Ports with VISA

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

Problem:
Can I access a parallel port with VISA?

Solution:
Yes. 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 (linked below).

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:
Developer Zone Example: Port and Memory Utilites for Windows
Drivers and Updates: VISA

Attachments:

Report Date: 10/01/1996
Last Updated: 04/29/2008
Document ID: 0Q0H595Q

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