Priority of operating mode interventions

Different interventions can influence the operating mode.

The following table shows the priorities of different interventions.

A lower number means higher priority.

Priority

Description

Remark

Commissioning

Local parameter setting mode can always be entered independent of all other settings or intervention via BACnet/Modbus and local input, e.g., thermostat is forced to Protection via bus or window contact.

"Forced operating mode for Protection" via BACnet/Modbus

The thermostat switches to Protection when "Forced operating mode for Protection" is sent via BACnet/Modbus. is displayed and HMI is locked **.

Window contact *

If the contact is closed, the operating mode changes to Protection. This overrides the operating mode on the thermostat.

"Window contact" via BACnet/Modbus *

"Window contact" sent via BACnet/Modbus has the same effect as local input window contact.

Note:

Only one input source must be used, either local input X1 (RDF4..BN)/D1 or BACnet/Modbus.

Hotel presence detector

If keycard is removed or room is unoccupied, the operating mode changes to Economy with HMI locked. When hotel presence detector is active, the thermostat returns to the previous operating mode.

Keycard via BACnet/Modbus

"Keycard" sent via BACnet/Modbus has the same effect as local input hotel presence detector.

Note:

Only one input source must be used, either local input X1 (RDF4..BN)/D1 or BACnet/Modbus.

Presence detector

If a room is occupied, the operating mode changes to Comfort. This overrides the operating mode on the thermostat. Unoccupied rooms set back the thermostat to the previous operating mode.

Presence detector via BACnet/Modbus

"Presence detector" sent via bus has the same effect as the local presence detector.

Note:

Only one input source must be used, either local input X1 (RDF4..BN)/D1 or BACnet/Modbus.

Operating mode via BACnet/Modbus

The operating mode can be changed via BACnet/Modbus.

Mode button

Users can change the operating mode via the mode button.

Note:

Higher priority commands override lower priority commands.

* HMI is locked.

** Users can activate HMI operation by:

  • Disabling object "Forced operating mode for Protection" via bus.
  • Disabling bus communication. When communication error occurs, device switches to Protection. Users can change the operating mode via the mode button.

Availability of Economy mode

The operating mode is selected locally via the mode button.

The behavior of the mode button (user profile) can be defined via P10, factory setting is P10 = 1.

P10

Available op. mode

End user op. mode button

Description

1

  • Switching manually between 2 modes via , Economy is not available (factory setting)

2

  • Switching manually between 2 modes via

  • Switching manually between 2 modes via

Window contact

The thermostat is forced into Protection when the window is open. The contact can be connected to multifunctional input X1 (RDF4..BN) / digital input D1. Set P60/P62 to 4. User operations are ineffective when the window contact is active.


Window contact

The function is also available via the BACnet/Modbus signal "Window contact".

Note

Use only one input source, either local input X1 (RDF4..BN)/D1 or BACnet/Modbus. User operations are ineffective when the window contact is active, or "Window contact" is sent via BACnet/Modbus.

Presence detector

The operating mode can be changed to Comfort based on room occupancy (room occupied or unoccupied, via presence detector).

For details, see Presence detector.


Forced operating mode for Protection

The operating mode can be changed to Protection via the BACnet/Modbus signal "Forced operating mode for Protection".