When the script of the code need VISA interface through:
The socket connection is needed and you will confirm if the IP address and port number is set correctly according to your VR5 settings:
Host IP address: 192.168.0.151
Port: 3000
The RPI command will not come through and there is no response from Telnet server of VR5-HD RPI GUI
This is because the interpreter will need additional EOL (End Of Line) :\r
For example, if you want to change B1 output power from default to -50dBm, the command will looks like this:
PORT:B1:OUTPUT -50 \r\n