A code library required by VISA could not be located or loaded.

[Stairs]

Hello,

I am trying to communicate with an Agilent HP 6613C Power Supply via GPIB and LabVIEW 7.0 on a machine with OS Win2000Pro. When I try to run any of the VIs (which contain a "call library function node) pertaining to the instrument , I receive the following error:

"Error -1073807202 occurred at hp661x Initialize.vi

Possible reason(s):
Driver Status: (Hex 0xBFFF009E) instrumentHandle was zero. Was the hp661x_init() successful?"

In the LavVIEW help, I found that this error translates into the Subject of this message. Can anyone tell me what can I do about this?

Thanks a million if you can,
Jason

[Dennis_Knutson]

First, check in MAX to see whether you actually have VISA installed. VISA is on your driver CD.

[Stairs]

Hello Dennis,

I have been using LabVIEW for about a year but this is my first time setting up a GPIB interface.

Max says that VISA may not be installed properly. Under my "Devices and Interfaces" it says "VISA Error". I have reinstalled the LV 7.0 Device drivers and reinstalled the NI-488.2 software but it still has the same problem.

What would be the easiest way to determine what the problem with my VISA is, and correct it?

Thank you,
Jason Stairs

[Dennis_Knutson]

The easiest way to fix the problem might to uninstall all drivers and then reinstall. To make sure everything is cleaned up before reinstalling, you might want to try running a program called msiblast. I don't have a link to it handy but there's but a couple posts recently that you should be able to do a search for it. Good luck.

[Stairs]

Hey Dennis,

That was the problem. After reinstalling my VISA it worked. Thank you!

jason

[dhel]

me also i encounter error when i use the Agilent E6560C ,

Labview Hex 0XBFFF009E visa or Code Library by VISA could not be located or loaded this is ususally due to a requireddriver not being installed on the system.

but i dont have the installer cd , where can i download that needed drivers.

[Dennis_Knutson]

At the top of the page is a link called Support. Click it.