Instrument Control (GPIB, Serial, VISA, IVI)

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VISA bus error occurred during transfer

Hi,

 

I am working on a test equipment that uses LabView 8.5 VISA to access the instrument.  Intermittently, I would receive VISA (0xBFFF0038) Bus error occurred during transfer error.  So far, we have seem this error can happen to random instrument (currently we have captured same error coming from ZTek ZT621VXI Scope, and Talon SR192 Digital I/O board) There is no change to the hardware nor the cable, and usually the re-executing the same command would get ride of the error message. 

 

From searching the responses in this message board, I got the feeling that 0xBFFF0038 might relate to a loose cable/connection.  I wonder if this is a a valid statement to say and that we should look into how to make sure everything are connected securely?  Would it be possible if the instrument driver could introduce this error?  Or if instrument firmware could introduce this error (ie. delayed response)?

 

I am searching into how to handle this error, so I am interested in hearing any feedback or experiences!

 

Thank you.

 

Peggy

 

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I really think you should check for a race condition in your LabVIEW program.

Are you correctly using error-in error-out wires and no parallel loops that access the bus?

greetings from the Netherlands
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