ABB i-bus KNX Product Manual page 155


ABB i-bus KNX
Commissioning
No.
33
This communication object is enabled if, in the
parameterized such that further dimming actuators can be controlled.
Via this communication object, the current brightness value of the light controller is sent on the KNX so that further devices
(slaves) can be set to the same value.
Telegram value:
As an option, the brightness value can also be sent internally in the DLR/S directly to the slave. This reduces the KNX bus
load. This property is set in the slave in the
via.
Using the master/slave function, additional lighting equipment such as DALI lighting equipment can be integrated into the
light control with the DLR/S using a normal ABB i-bus
KNX Switch/Dim Actuators SD/S. In this way, highly flexible and energy efficient KNX lighting systems can be integrated into
the intelligent installation systems.
With deactivated light control (telegram with the value 0 to the communication object Function Activate controller), the
master continues to send the brightness value via the communication object Master: Brightness value. In this way, the
lighting combination (master/slave) is always controlled as a unit, even with deactivated light control.
The master/slave unit is disconnected, for example, by deactivation of the slave (telegram with the value 0 to communication
object Function Activation Slave). If the slave is deactivated, the brightness values received from the slave via the
communication object Master/Slave: Brightness value are not switched to its output.
39
This communication object is enabled if, in the
DLR/S is parameterized as a master and an offset is enabled.
Using this communication object, the current brightness value of the controller is sent with the parameterized offset on the
bus, so that further devices (slaves) can be set to the same value. Alternatively, this value can also be transferred internally
in the DLR/S to another lighting group (slave).
Telegram value:
If smaller or larger brightness values result through the offset, the maximum or minimum control limits are set.
The offset can be switched on using the next communication object Master: Offset activate (activated, value 1) or switched
off (deactivated, value 0). This is particularly useful if no natural light shines through the window and differing brightness from
two lamp strips is inexpedient to light up the room uniformly.
With deactivated light control (telegram with the value 0 to the communication object Function Activate controller), the master
continues to send the brightness value via the communication object Master: Brightness value. In this way, the lighting
combination (master/slave) is always controlled as a unit, even with deactivated light control.
The master/slave unit is disconnected, for example, by deactivation of the slave mode (telegram with the value 0 to the
communication object Activate slave mode). If Slave mode is deactivated, the brightness values received from the slave via
the communication object Master/Slave: Brightness value are not switched to the DALI output.
Function
Master: Brightness value
0 = OFF, lighting group is switched off, Slave function remains active
...
255 = 100 %
Parameter window - Gx
Master: Brightness offset
0 = OFF, lighting group is switched off, Slave mode
...
255 = 100 %
Object name
Group 1
Parameter window - Gx Light controller, page 99, the lighting group is
Slave, page 112, using the parameter Slave is controlled
®
DALI Gateway or other 1-10 V lighting equipment via the ABB i-bus
Group x
Parameter window - Gx Light controller, page 99, the lighting group of the
remains active
Data type Flags
1 bit C, R, T
DPT 5.001
1 byte C, R, T
DPT 5.001
DLR/S 8.16.1M | 2CDC 507 100 D0202 153
®