TEF

Hello everybody, I was wondering of anyone could indicate me where can I find some help about building a VISA driver other than: Developing LabVIEW Plug and Play Instrument Drivers which I'm currently going through. I'm working on this for a university project and a external company. I have a satellite dish controller from 1991 which I have to control it using RS-423 going over a terminal server. (No driver of any kind, it has been ordered specifically for the company) I have already been working on some project using TCP/IP and serial communication but I struggle to understand VISA. So far I have been able to define all the messages needed to send and receive from the controller manual but all of these are made for RS-423. I heard that RS-423 is similar to RS-432 so I could probably use the serial read/write function. Is there any tutorial about VISA drivers? I don't know if I should manage all the communications using TCP/IP or make a VISA driver. I think using VISA could be a nicer solution but I'm new at building drivers. Thanks.