Vaillant aroVAIR

Air conditioner • MODBUS RTU (DDF)

Vaillant
Device image

This DDF allows Vaillant aroVAR devices to be connected to the system. Up to 32 devices per Device Station/Line are supported.

Device Station Settings

Port:
Data interface on the controller.

Slaves:
Enter the slave addresses, separated by commas.

Example:
1,2,3,4

System Device

Create a device element and select the corresponding device under IO Configuration.

The UI displays the currently read values:

  • Connection – Connection status
  • Mode – Current operating mode
  • Set – Current setpoint
  • Fan – Fan status
  • Room – Current room temperature
  • Water – Current water temperature

Commands

Commands for changing Mode, Set Temperature and Fan Speed are supported.

These commands can also be used in Actions and Timers.

Manufacturer Type Protocol Model Version ID
Vaillant Air conditioner MODBUS RTU (DDF) 1 1 0x0B00003100010100
ID Name Unit Type Direction
0 Operating Mode 0=Off, 1=Ventilation, 2=Cooling, 3=Heating, 4=Dry, 5=Auto
1 Desired Temperature 17-30 C
2 Fan Speed 2=Low, 3=Medium, 4=High, 5=Auto
3 Room Temperature C
4 Water Temperature C
100 Set Operating Mode 0=Off, 1=Ventilation, 2=Cooling, 3=Heating, 4=Dry, 5=Auto
101 Set Desired Temperature 17-30 C
102 Set Fan Speed 2=Low, 3=Medium, 4=High, 5=Auto
200 Quality 1=Ok
*2026-09-14 13:46:11 (do) ******************************
Last Commit: ff8d38b9 | 2026-09-14 13:45:57
*2026-09-15 12:57:49 (do) ******************************
Last Commit: 1635507c | 2026-09-15 12:56:49