ABB i-bus KNX Product Manual page 116

®
ABB i-bus KNX
© 2008 ABB STOTZ-KONTAKT GmbH
Planning and application
Brightness
control output
This has the following effect: As soon as the master (brighter strip 1 at the
rear of the room) is switched on, the slave will also receive an ON command,
however with the minimum brightness. This has the advantage that the user
immediately recognises that they are controlling both light strips. As soon as
the master has achieved the brightness value 8 % (20 digits), the slave is
controlled as 20 digits darker than the master. This continues until the
master achieves the brightness value (254). As there is no higher value than
255 the slave is also controlled with 254 at this point.
This ensures that the maximum possible brightness level is achieved in
the room.
Case 2: The master is the darker lighting strip
If the darker lighting strip (2) is the master, this will result in the following
characteristic correction.
In the parameter window
to 3 and the following values are entered:
X0 = 1/Y0= 20, X1 = 235/Y 1 = 254, X2 = 255/Y2 = 255
Brightness
control output
Normal curve
Master
Adjustment curve
Slave
Object Brightness value of slave
the Number of value pairs is set
X: Charact. adj.
Adjustment curve
Slave
Normal curve
Master
Object Brightness value of slave
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