GPIB-USB-B bug with 488.2 2.8.1

[IpecoElectronics1]

Hello NI,

I have noticed a bug with my GPIB-USB-B and the new LabVIEW 2011 I have recently upgraded to (from 8.2).

I have included three files, firstly my PC's dxdiag, secondly my first IOtrace log of the bug and thirdly how I fixed the bug.

Basically a visa timeout error keeps occuring after I cycle instrument power and close/re-open a vi which has been executed to control a piece of hardware in my lab. This is with 488.2 2.8.1 installed.

I seem to be able to replicate the problem everytime.

However I installed my old driver which I have used with LabVIEW 8.2 and 8.5 (came in the box with the GPIB-USB-B many years ago). The driver seems to work flawlessly and there is no timeout no matter how hard I try to replicate the fault.

Regards

[Lewis_G]

Hi Pulse1,

Thank you for getting in touch.  This KnowledgeBase article shows that NI-488.2 2.8.1 is compatible with LabVIEW 2011.  Also, NI-488.2  2.5.2 was shipped with LabVIEW 8.2 and 8.5 so I guess this is what you are using now and is working.

Did you try re-installing NI-488.2 2.8.1?  It may not have installed correctly the first time, could you try it again?

Let me know how you get on.