ABB i-bus KNX Product Manual page 214

®
ABB i-bus KNX
Group objects
No.
49
This group object is always visible in controller mode.
This group object is hidden in actuator mode.
The group object receives the operating mode to be set as a 1-byte value.
Telegram value:
•
0: Automatic/no override
•
1: Comfort
•
2: Standby
•
3: Economy
•
4: Frost/heat protection
The group object overrides the room's operating mode. The operating mode set here overrides all other priorities except for
the reaction on bus voltage failure.
For example, this group object can override a malfunction on a connected sensor (e.g. faulty window contact) that would
actually cause the operating mode to change.
For the device to function normally and react normally to adjustment by the user, this group object must be set to the value 0
Automatic/no override.
The group objects and states Override mode, Fill level alarm, Dew point alarm, Window contact, Request On/Off (Master),
Presence detector and Operating mode (listed in decreasing priority) determine the controller's setpoint temperature
in addition to manual setpoint adjustment and basic setpoint adaptation.
If a slave is used:
To indicate the operating mode on a slave, this group object must be connected to the slave's group object Operating mode
overridden (slave).
212 2CDC508220D0211 Rev. A | VC/S 4.x.1
Object function
Operating mode override (master)
Note
Note
Note
Name
Channel A – Controller
Data type Flags
1 byte C, W, T, U
DPT 20.102