Hi, currently i using the agilent 82357B USB GPIB, can give complete example VB6 source code want to know how to use for ibwrt and ibrd command to communicate with the instrument algar AT8000. example: i want to read the version from algar AT8000. I using the VISA command only can communicate the algar version only. If can give me also example how to control the algar AT8000 with VISA command. thanks.