I have to communicate between two PC over a GPIB bus. I use an asincronous protocol. PC_A send data and PC_B receive data, after a random time (50 - 550 ms) PC_B send response and PC_A receive response. After a random time on PC_B during the send response occours an EBUS (GPIB 14) errors and PC_A can't read the response. Any suggestions how to proceed would be appreciated.