ABB i-bus
®
KNX
Group objects
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 337
No.
Function
Group object name Data Type
Flag
72
Status Control value Basic-
stage cooling
Channel – Controller 1 byte / 1 bit
DPT 5.001 / 1.001
C, R, T
The group object is enabled if
Deactivated
was not selected for the parameter
Basic-stage cooling
in the
Application parameters
parameter window.
This group object is hidden in actuator mode.
The group object data point type depends on the selected application and the associated control.
Output is via a 1-byte value (DPT 5.001) when the following control types are selected:
•
2-point 1 byte (0/100 %)
•
PI continuous (0…100 %)
•
PI continuous (0…100 %) for Fan Coil
Output is via a 1-bit value (DPT 1.001) when the following control types are selected:
•
2-point 1 bit (On/Off)
•
PI PWM (On/Off)
Note
The control type is preselected by the parameter Parameter
Additional-stage cooling
in this case. A
certain type of control is preset depending on the selected application. The control type is freely se-
lectable if
Free configuration
is selected in this parameter.
This group object outputs the control value for Basic-stage cooling.
Use of a physical device output (e.g. valve) for Basic-stage cooling.
•
The group object contains the control value that the controller uses to control the output.
Basic-stage cooling is controlled only via group object (no internal use):
•
The group object sends the control value for controlling a different actuator.
Note
Depending on the input group objects of the actuator, it could be necessary to change the output of the
control value between 1 byte and 1 bit. This is performed via the parameters described above.
Note
Cyclical sending and sending on change of the group object can be set under Extended settings in the
Room thermostat – Basic-stage heating
parameter window.
