How to use HP82350A

[eriasystemes]

Hi all,
I've got a problem using HP82350A. The link below didn't help me at all !
http://digital.ni.com/public.nsf/websearch/E56D3D4866BE0A8A86256942006626F0?OpenDocument

LabVIEW "VISA Find Resource" vi doesn't find the instrument I've connected to it.

Any help would be appreciated.
Julien

[Brian_Powell]

Can you provide more information about what you did? Did you try both alternatives?

Are there any diagnostic utilities with Agilent VISA or their GPIB software which shows that the controller is working correctly?

Is it just Find Resource that's not working? Can you send "*IDN?" to an instrument and get a response.

Thanks for any illumination you can provide.

Brian

[eriasystemes]

Thanks a lot for your answer Brian.

I DID try both alternatives. I've got a little utility program from Agilent (something like "I/O library") that is able to communicate with instrument (HP3478A - which does not have any *IDN? query but answers what he reads so the card works properly).
I tried to cummunicate with the instrument using an NI PCI-GPIB card and it does work perfectly. The problem is that I'm asked to use this HPIB Board...

Does LabVIEW's stock VI "VISA find resource" work like MAX and doesn't recognize other 'brands' than NI ?

I use LV7.0, Win XP
Julien

[Brian_Powell]

LabVIEW's VISA Find Resource should work with any vendor's VISA. I'm pretty sure it just turns around and calls the C function viFindRsrc. VISA is going to turn around and call the driver for the board (e.g., NI-488.2 for NI boards, not sure what for Agilent boards) and ask it to list devices on the bus.

Perhaps something's going wrong with this lowest-level driver, or the interface from VISA to this driver.

I'm curious whether you can just read and write to the instrument without using VISA Find Resource. In LabVIEW, can you get any VISA function to work, or is it justs VISA Find Resource that's failing?

Brian

[LesHammer]

If you are trying to mix NI-VISA with Agilent VISA, certain steps must be followed.

1) Install NI VISA.
Install any NI-GPIB cards now.
2) Install Agilent VISA in the Side-by-Side mode.
(It should automatically pick up the NI-GPIB
cards already installed.)
3) Install the Agilent GPIB card.
4) In NI-MAX, turn on the Passport option.
(This lets NI see the Agilent cards)

Les.Hammer@CompleteTest.com