AnsweredAssumed Answered

GPIB Problem between GPIB/LAN Gateway and amplifier

Question asked by momoh on Sep 16, 2009
Latest reply on Oct 7, 2009 by changmeikuan

I am using  the "E5810A GPIB/LAN Gateway to control a HF Amplifier.
To communicate with the amplifier in VEE  I am using the direct I/O objects.

My Problem:
Sometimes the amplifier doesn't  turn on after sending the correct GPIB command which is "HF_ON" and the strange thing is that VEE does't display the 811 error message to tell me that no device was found or that there is a timeout error. which means that the desired amplifier was found , but why doesn't the amplifier react to my command ?? and why VEE is not able to inform me --by displaying an error message-- that the amplifier did not react to my command.

This strange behavior doesn't happen all the time and i have no idea what to do to fix this annoying problem, the timeout that i set in the direct i/o  object of the amplifier is: 5s.

I will be happy if somebody could help me to understand and fix the problem.

Thanks in advance.