Binary installation Windows - Erriez/R421A08-rs485-8ch-relay-board GitHub Wiki

1. Download the Windows installer R421A08_Relay_Control_setup_vX.X.X.exe from the release page.

2. Double click the setup to install.

3. Start the application R421A08 Relay Control from the Start Menu.

4. The GUI starts up:

Click in the toolbar Connection | Monitor (Ctrl+M) to start the MODBUS monitor on another serial port.