ABB i-bus® KNX
GROUP OBJECTS
Function
Group object name
Data point
type
Length
Flags
Confirm On/Off (master)
Channel X – Controller
DPT 1.001
1 bit
C R
T
This group object sends the control status on the bus (ABB i-bus® KNX).
Telegram value:
•
1 = Control active (On)
•
0 = Control inactive (Off)
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
Setpoint display (master)
Channel X – Controller
DPT 9.002
2 bytes
C R
T
This group object sends the current setpoint on the bus (ABB i-bus® KNX).
This group object can be used for synchronization between the controller (master) and the slave as well.
Telegram value:
•
-273 … 670760 K
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
Request setpoint adjustment (master)
Channel X – Controller
DPT 9.001
2 bytes
C
W
This group object is used to receive a setpoint adjustment via the bus (ABB i-bus® KNX).
The setpoint adjustment must lie withing the permitted setpoint range; see following parameters:
•
Max. manual increase in heating mode via KNX
•
Max. manual reduction in heating mode via KNX
•
Max. manual increase in cooling mode via KNX
•
Max. manual reduction in cooling mode via KNX
If the required temperature is outside the permitted setpoint range, the maximum/minimum possible value is set. The master device checks the value received and
returns the set value via group object Confirm setpoint adjustment (master) [DPT 9.001].
The data point type of the group object depends on the setting in the parameter
Data point type, manual setpoint adjustment
Telegram value:
•
10 … 40 °C
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
•
–
Connect analog room control unit to physical device input a
\
Option
No
–
Data point type, manual setpoint adjustment
Option
DPT 9.001 (absolute temperature value)
Request setpoint adjustment (master)
Channel X – Controller
DPT 9.002
2 bytes
C
W
This group object is used to receive a setpoint adjustment via the bus (ABB i-bus® KNX).
The setpoint adjustment must lie withing the permitted setpoint range; see following parameters:
•
Max. manual increase in heating mode via KNX
•
Max. manual reduction in heating mode via KNX
•
Max. manual increase in cooling mode via KNX
•
Max. manual reduction in cooling mode via KNX
If the required temperature is outside the permitted setpoint range, the maximum/minimum possible value is set. The master device checks the value received and
returns the set value via group object Confirm setpoint adjustment (master) [DPT 9.002].
The data point type of the group object depends on the setting in the parameter
Data point type, manual setpoint adjustment
Telegram value:
•
-9 … 9 K
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
•
–
Connect analog room control unit to physical device input a
\
Option
No
–
Data point type, manual setpoint adjustment
Option
DPT 9.002 (relative temperature value)
Product manual | EN-US | VC/S 4.x.1 | 2CDC508220D0211 Rev. B
164
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