ABB i-bus KNX Product Manual page 96

®
ABB i-bus KNX
© 2008 ABB STOTZ-KONTAKT GmbH
Commissioning
No. Function
28, 53, Master: Brightness value of
1)
78, 103 slave
This object is enabled if in parameter window
configured as a master.
Via this object the current brightness value of the control is sent on the bus so that further
devices (slaves) can be set to the same value.
Telegram value: 0
...
255 = 100 %
Via the master/slave function additional luminaries can also be integrated with the Light
Controller of the lighting control of the LR/S, e.g. DALI luminaries via an ABB i-bus
Gateway DG/S or other 1-10 V luminaries via the ABB i-bus
The integration of the ABB i-bus
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 object activate control)
the brightness value is still sent by the master via the object Brightness value of slave.
In this way the lighting combination (master/slave) is always controlled as a unit even
with deactivated light control.
The master/slave unit is separated, for example, by deactivation of the slave mode
(telegram with the value 0 to object Activate slave mode). If the slave mode is deactivated,
the brightness values received from the slave via the object Master: Brightness value of
slave are not switched to its output.
29, 54,
Setpoint
1)
79, 104
This object is enabled if in parameter window
enabled with the option Light control.
Via this object the current setpoint can be read which is on the output (Light control).
Also, the setpoint of the light control can be modified via the bus using this object so that
different setpoints can be set for the light control, e.g. for competition and training settings in
sports centres.
It is inadvisable to transfer setpoint values from other rooms as it is practically excluded that
both rooms have exactly the same reflection properties and brightness relationships.
Furthermore, the characteristic which controls the lighting is determined during the automatic
artificial lighting calibration. There are also slight differences from room to room because of
manufacturing tolerances. If a setpoint value should still be transferred regardless of these
facts, it must be assumed that the light control will be inexact (large setpoint deviations).
Telegram value: 0
...
255 = 100 %
A second setpoint which can be read via the bus, for example, during ongoing operation via
a visualisation or a pushbutton, can be determined beforehand via a purely artificial lighting
setting and read via the object Actual value.
For further information see:
Note
This object can be read and written in the ETS. It will not be sent on
the bus independent of the T flag.
1)
The numbers of the objects apply for outputs A to D.
Object name
Output X
the output of the Light Controller is
X: Control
= OFF channel is switched off, slave mode remains
active
®
Universal Dimmer UD/S is also possible. In this way highly
Output X
Select additional function is
X: General
= OFF
Constant lighting control properties
Data type Flags
1 byte (EIS6)
C, R, T
DPT 5.001
®
DALI
®
Switch/Dim Actuators SD/S.
1 byte (EIS6)
C, R, W
DPT 5.001
94