Modbus settings

If the ventilation unit is connected to e.g. a building automation system via Modbus, configure the Modbus settings. The Modbus settings are:
  • Ventilation unit’s Modbus address
  • Modbus baud rate
  • Modbus parity
  • Modbus stop bit.
The configuration of all Modbus settings is described below in the above-mentioned order. You can also refer to these instructions when configuring individual settings, such as the Modbus address.

To configure the Modbus settings:

  1. Select Settings.
  2. Select Expert settings with the arrow buttons.
  3. Select OK.
  4. Select I/O and bus settings with the arrow buttons.
  5. Select Modbus settings with the arrow buttons:
  6. Select OK.

    The Modbus 1/4 screen opens.

  7. Use the Plus and Minus buttons to set the ventilation unit’s Modbus address. You can set the address between 1 and 247.
  8. Select Right arrow.

    The Modbus 2/4 screen opens.

  9. Use the Plus and Minus buttons to set the Modbus Baud rate. The options are 9600, 19200, 38400, 57600 and 115200.
  10. Select Right arrow.
  11. The Modbus 3/4 screen opens.
  12. Use the Up arrow and Down arrow buttons to set the Modbus Parity. The options are:

    • no — No parity

    • even — Even parity

    • odd — Odd parity.

  13. Select Right arrow.

    The Modbus 4/4 screen opens.

  14. Use the Plus and Minus buttons to set the Modbus Stop bit. The options are 1 or 2.
  15. Select OK.
The Modbus settings have now been set.