34405A

[dmeyaard]

I have a Labview program that used to use a 34401A GPIB DMM; I would like to switch to a 34405A DMM.

I downloaded the driver from the NI website, but even the sample code does not work for me. When I click refresh to find the Visa resource name, it finds the device, but when I try to run it, I get error -1073807264 coming out of my initialization box. When I look in the box, I get the error out of the very first Visa statement, Visa Open. Somewhere there is a communication problem that I do not know how to fix.

Does anyone have any suggestions?

Thanks for the help

[jjp377]

Hi,

Are the settings in MAX and the instrument the same?  You might try using an Alias as suggested in a post relating to this issue. Here is a KB that includes some details (the KB mentions serial) but it can give you an idea of what to do.

[Burban]

The LabVIEW Help contains a list of VISA error codes.  The description of Error code −1073807264 reads "The interface associated with this session is not currently the controller in charge."  To check if your GPIB device is the controller in charge, open Measurement and Automation Explorer and select your GPIB device under devices and interfaces.  In the GPIB Interface Properties, under General Settings, make certain that the System Controller checkbox is checked.

Message Edited by Burban on 10-06-2008 11:23 AM