Is VISA Write VI / Out Port (need AccessHW) better for writing to parallel port?

[rarshadi]

We have experimented with 2 methods for writing to parallel port:

1. Using NI VISA directly by calling VISA Write vi.

2. Using the Out Port vi, for which we had to install AccessHW.

Does the first method have any disadvantages. It seems to be a simpler solution.

Operating system: Windows 2000

Labview 8.2

NI VISA 4.0

[Jason W]

Hey rashadi,

There is nothing wrong with using the VISA write.vi to write to a parallel port.  Here is a great example program of how to use the VISA vi's to write to a parallel  port. 

I hope this helps!

Best regards,

Jason W
Applications Engineering
National Instruments