GPIB Works in basic, but not in .net

[pflores]

It may be a speed/timing issue, hard to tell. I say at this point, we can consider just your newer system and treat this as a basic "Establish communication and get started with my instrument" issue.

1. Do you have the manual of the device you are trying to communicate with? Can you post it?
2. Are you sure it is 488.2 compliant? (some are 488.1...)
3. Do you have any other GPIB instruments that we can use as a test?
4. What OS is on the newer system?
5. Have you installed your NI GPIB card and seen it in Measurement and Automation Explorer (MAX)? Can you include a screenshot?
6. What happens when you click Scan For Instruments on this GPIB interface in MAX? You should see your instrument in the Connected Instruments section. Can you post a screenshot?
7. If we are successful up to this point, then the NI GPIB interface is installed and configured properly.

Helpful Link:GPIB Instrument Control Tutorial

Try this out and let us know what you find.

Regards,