Commissioning the Modbus RTU via the Discovery Board
To establish a connection with the NP5-02, proceed as follows:
- Plug in the NP5-02 at X8.
- Unplug jumper X13.
- Set potentiometer P2 to 0 (counterclockwise as far as it will go)
- Switch on the termination resistor (switch SW3 of the Modbus board to ON).
- Connect your RS485 cable to X2 of the Modbus board.
- Connect your supply voltage to X7.