Instrument not appearing in VISA Resource

[jyang72211]

I have a GPIB resource.  It is showing up in MAX, but not in resource name constant.  I checked I/O filtering and refreshed the resource name, but the problem persist.  What's happening?  See attached picture.

[RavensFan]

Try the Select VISA class menu item just above I/O filtering in the right click menu.

[jyang72211]

I tried that.  The resource still appear in MAX, but no in a resource name constant of my LabVIEW.

[Doug-B]

There is a good resouce on the NI website that describes how to handle the exact situation you seem to be encountering. You can get to that page by following this link:

http://digital.ni.com/public.nsf/allkb/61BA81FB87962275862574FA006F4815

Hope This Helps,

Doug B

[jyang72211 · Accepted solution]

I tried some of those approachs, but they are not what I am looking for.  It seems like even though the resource does not show up on labview, and I am still able to talk to it if I key in the resource name manually.  The USB-GPIB instruments are the ones that gave me problems, since I would know the primiary address of the instruments but not their interface ID. They are using different controllers.  

I wrote a vi that loop through interface id 0-4 with a specified primary address to issue the *IDN? command and check for response.  Through this method, I am able to find the address string of the GPIB and talk to the instruments even visa can't find that resource.

I hope that this method will hold up through time.