ABB i-bus KNX Product Manual page 105


ABB i-bus KNX
Commissioning
Light controller controls other
dimmer actuators as "master"
Options:

No: The DLR/S only calculates the control value of the connected lighting for its own lighting group.
The status of the brightness value is only sent via the communication objects Brightness value or
Brightness value/Status.

Yes: The communication object Master: Brightness value is enabled. Using this communication object,
a slave can be controlled via KNX. The following parameters appear:
No
Yes
Blocking time after sending between
two brightness telegrams in s [0...10 s]
Options: 0...10
With this parameter, sending of the Master: Brightness value can be limited. As a result, the bus
load can be reduced significantly. This defines the time intervals at which the brightness values are
sent on the KNX. The Block time only relates to the communication Master: Brightness value.
Use fct "Master offset brightness"
Options: No
Yes

No: The Master brightness offset is not considered or not enabled. An offset is not considered.

Yes: The brightness value that the DLR/S sends via the communication object Master:
Brightness value is provided with an offset, i.e., an offset is added or subtracted by the Master:
Brightness value. Furthermore, the communication object Activate master offset is enabled.
The offset can be activated or deactivated via this communication object. With a deactivated
offset (value 0), the brightness value sent by the communication object Master brightness
offset corresponds to the actual brightness value of the master. With activated offset (value 1),
the offset brightness value is modified in the parameters set in the offset values. The
brightness value of the master is always used as the basis.
Note
The offset is deactivated at KNX bus voltage recovery, reset or download.
Using this function, e.g. the offset can be deactivated in the evening when no natural
brightness is available. Accordingly, both lighting strips are controlled with the same level of
brightness.
DLR/S 8.16.1M | 2CDC 507 100 D0202 103