ABB i-bus® KNX
GROUP OBJECTS
Function
Group object name
Data point
type
Length
Flags
Heating/cooling changeover
Channel X – Controller
DPT 1.100
1 bit
C
W T U
This group object is used to switch the operating mode (
heating
/
cooling)
via the bus (ABB i-bus® KNX).
, the option
Via group object or via slave
is set, switching can be performed via this group object or via a slave.
Telegram value:
•
1 = Heating
•
0 = Cooling
Prerequisites for visibility
•
–
Option
Controller channel
–
Basic-stage heating [controller]
all options except
Deactivated
–
Basic-stage cooling [controller]
\
all options except
Deactivated
–
Option
Via group object / Via group object or via slave
Basic setpoint
Channel X – Controller
DPT 9.001
2 bytes
C
W
This group object is used to receive the adjustment of the basic setpoint via the bus (ABB i-bus® KNX).
The basic setpoint is defined in the parameter
, and it can be overridden by a temperature value received on this group object. This temperature value
is limited to the valid value range (10 … 40 °C).
More information: →
.
Telegram value:
•
10 … 40 °C
Prerequisites for visibility
•
\ Option
Controller channel
•
Setpoint specification and adjustment
\ Option
Relative
Reset manual setpoint adjustment
Channel X – Controller
DPT 1.017
1 bit
C
W
This group object is used to reset manual setpoint adjustment via the bus (ABB i-bus® KNX).
Telegram value:
•
1 = Reset manual setpoint adjustment
•
0 = Reset manual setpoint adjustment
Prerequisites for visibility
•
\ Option
Controller channel
•
–
Connect analog room control unit to physical device input a
\
Option
No
–
Reset manual setpoint adjustment via group object
Option
Yes
Dew point alarm
Channel X – Controller
DPT 1.005
1 bit
C
W T U
This group object is used to receive the dew point status via the bus (ABB i-bus® KNX). Operating mode
Building Protection
is activated when telegram value 1 is
received.
Telegram value:
•
1 = Dew point alarm active
•
0 = Dew point alarm inactive
Note
The alarm is valid as long as the device is in
Cooling
mode or until the alarm is canceled by reception of the value 0.
The operating mode is recalculated upon the change to
Heating
operating mode.
A higher-priority group object can override the operating mode.
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:
To determine the operating mode on a slave, this group object must be connected to the corresponding group object of the slave.
Prerequisites for visibility
•
–
Option
Controller channel
–
Basic-stage heating [controller]
all options except
Deactivated
–
Basic-stage cooling [controller]
\
all options except
Deactivated
–
Option
Via group object
Product manual | EN-US | VC/S 4.x.1 | 2CDC508220D0211 Rev. B
162
Note about navigation in the PDF: Key combination 'Alt + left arrow'
jumps to the previous view/page