NI-VISA2.5 BETA3

[Makoto]

Hi all
I have just downloaded NI-VISA2.5 BETA3 from NI ftp site for
using new features such as GPIB low-level control. I am now
trying to write a test program with LV5.0, but now have a problem.

I put two VIs "VISA Open" & "VISA GPIB Send IFC" and then
tried to connect them via "VISA session"terminals. But they
can't be connected ! The LV environment just changes the wire
to a dotted line. (See the following connection.)

[VISA Open] VISA session (dup) -----> VISA session [VISA GPIB Send IFC]

I also wrote a C++ program with the new feature using "GPIB::INTFC"
descriptor, but there was no problem at all.

I think the problem is not due to VISA library itself but LV-update
portion by the VISA 2.5 BETA 3 package. Will it be fixed at t
he next
release?

Makoto

[dan.mondrik@natinst.com]

Makoto:

This should work but you need to solve the wiring conflict. (The dotted
line is a broken wire.)
The "VISA GPIB Send IFC" VI will only accept the class "GPIB
BoardInterface".
You need to right-click on the session input to "VISA Open" and change the
VISA Class type.
This is not a problem and should work with the files we shipped with beta 3.
Let me know if you experience further problems.

Dan Mondrik
Senior Software Engineer, VISA
National Instruments

"Makoto" wrote in message
news:394989cd@newsgroups.ni.com...
> Hi all
> I have just downloaded NI-VISA2.5 BETA3 from NI ftp site for
> using new features such as GPIB low-level control. I am now
> trying to write a test program with LV5.0, but now have a problem.
>
> I put tw
o VIs "VISA Open" & "VISA GPIB Send IFC" and then
> tried to connect them via "VISA session"terminals. But they
> can't be connected ! The LV environment just changes the wire
> to a dotted line. (See the following connection.)
>
> [VISA Open] VISA session (dup) -----> VISA session [VISA GPIB Send IFC]
>
> I also wrote a C++ program with the new feature using "GPIB::INTFC"
> descriptor, but there was no problem at all.
>
> I think the problem is not due to VISA library itself but LV-update
> portion by the VISA 2.5 BETA 3 package. Will it be fixed at the next
> release?
>
> Makoto