Novice LV user operating error codes

[Neophyte999]

Test programs that were written by customer using LV 7.1 and when PC crashed, I am now unable to get test application to run with newer LV version demo.

Error message states that program cannot find GPIB even though card is working correctly and finds instruments on the buss using Measurement and Automation Explorer tool.

Tried to load what I thought was a patch for 7.1 to be used for later versions but did not help.

[Ben]

make sure VISA is installed.

VISA provides the API to the hardware.

Ben

[F._Schubert]

There is an error code collision. Read the full error message, that should write something about files that are missing. Porpably you didn't restore a configuration file that is needed.

Felix

[Neophyte999]

Hello Ben,

Forgive my ignorance, but is VISA a separate application or is it supposed to launch when LV is opened?

There is a VISA read me folder.

When originally trying to launch the customer application, the following error messages appeared:

"Constant changed to hidden control"

LV changed a constant that was wired to a case structure to a hidden control to maintain compatibility with LV 7.1 and earlier.

This message was removed when profile was resaved upon the closing of the LV program.

Second message is Dependency loaded from new path that does not go away.

Error message when trying to execute program is:

Error 0 @ GPIB write VI pwrsys_cal.vi

[Neophyte999]

All error messages upon LV launch are gone.

Only when trying to intiate the routine does the message:

"Error 0 @ GPIB write VI pwrsys_cal.vi" appear.

[KyleTTU]

Hi Neophyte999, 

If you are using a new version of Labview, make sure to first do what was mentioned above and check to see if VISA is installed and that it is the latest version.   You can do this by going into MAX and looking under Software for "NI-VISA" followed by the version of the driver.

Here is a link to the latest VISA driver: http://joule.ni.com/nidu/cds/view/p/id/2251/lang/en 

Hope this helps!