ABB i-bus® KNX
GROUP OBJECTS
Function
Group object name
Data point
type
Length
Flags
Current setpoint
Channel X – Controller
DPT 9.001
2 bytes
C R
T
This group object sends the current setpoint temperature for the active operating mode (
heating
/
cooling
) on the bus (ABB i-bus® KNX).
The setpoint temperature value consists of the following values:
•
Current operating mode
•
Manual setpoint adjustment
The following settings influence this group object:
•
Manual setpoint adjustment
•
Operating mode changes
•
Basic setpoint temperature change
•
Change of the setpoint temperature of the operating modes
Telegram value:
•
5 … 45 °C
Prerequisites for visibility
•
\ Option
Controller channel
Operating mode normal (master)
Channel X – Controller
DPT 20.102
1 byte
C
W T U
This group object is used to receive the operating mode to be set via the bus (ABB i-bus® KNX).
More information: →
Explanation of the operating modes, Page 174
Telegram value:
•
1 = Comfort
•
2 = Standby
•
3 = Economy
•
4 = Building Protection
Note
The controller's setpoint temperature value is influenced by the following factors (listed in descending order of priority):
•
Manual setpoint adjustment
•
Overriding of basic setpoint
•
Overriding of operating mode
•
Fill level alarm
•
Dew point alarm
•
Window contact
•
Control On/Off
•
Presence detector
•
Operating mode
Note
If a slave is used:
This group object must be connected to the corresponding group object of the slave to ensure the functionality of master/slave operation.
Prerequisites for visibility
•
\ Option
Controller channel
Operating mode override (master)
Channel X – Controller
DPT 20.102
1 byte
C
W T U
This group object is used to receive the override of the operating mode via the bus(ABB i-bus® KNX). All other priorities, except for the reaction on bus voltage failure,
are overridden as well.
Telegram value:
•
0 = Automatic/no override
•
1 = Comfort
•
2 = Standby
•
3 = Economy
•
4 = Building Protection
Note
This group object can be used to override a malfunction in the connected sensor (e.g. faulty window contact) that would cause the operating mode to change.
Note
For the device to react to adjustment by the user, this group object must be set to telegram value 0 (Automatic/no override).
Note
The controller's setpoint temperature value is influenced by the following factors (listed in descending order of priority):
•
Manual setpoint adjustment
•
Overriding of basic setpoint
•
Overriding of operating mode
•
Fill level alarm
•
Dew point alarm
•
Window contact
•
Control On/Off
•
Presence detector
•
Operating mode
Note
If a slave is used:
This group object must be connected to the corresponding group object of the slave to ensure the functionality of master/slave operation.
Prerequisites for visibility
•
\ Option
Controller channel
Product manual | EN-US | VC/S 4.x.1 | 2CDC508220D0211 Rev. B
160
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