Thanks Joe My modulater is called SLM 640/12. It was made from jenoptik,germany. Do I necessarily need driver for instrument(hardware) when I communicating through the serial port.
I have GPIB command written by previous user which I have attached in first question, now I want to communicate through serial port thats why i modified using Visa which I have attached too.It would be great if u good look it and comment on it, thank u very much milan
