ABB DG/S 1.1 Product Manual page 56

®
ABB i-bus EIB / KNX
© 2006 ABB STOTZ-KONTAKT GmbH
Functional description
No. Function
9 Selected Device Rel.
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27 Dimming
Channel X Selected Device Rel. Dimming [EIS 2; 4-bit dimming]: Using this object, the DALI
device selected via the "Select Device" object (no. 7) receives the relative dimming telegram.
After a start command is received, the brightness is changed in the defined direction with the
parameterised speed. If a stop command is received before the end of the dimming process, the
dimming process is interrupted and the brightness value achieved is retained. Dimming values
which are greater than or less than the max. or min. values will not be set, the parameterised
max. or min. values are retained when dimming is continued.
This dimming command dims each individual device of channel A or B if they have been
selected via the object "Select Device".
10 Selected Device Set Value
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28
Channel X Selected Device Set Value [EIS 6; 1-byte value]: Using this object, the DALI
device selected via the "Select Device" object (no. 7) receives its brightness value. It can be set
via parameters whether to dim or jump to the brightness value. A telegram with the value "0"
switches off the channel. Brightness values which are greater than or less than the maximum or
minimum value are not set, rather the corresponding max. or min. value is set. It is still possible
to adjust if a ballast that has been switched off immediately assumes a received brightness value
and switches on, or only after the ON command.
Telegram value "0": Off
"1": Minimum physical brightness
"255" = 100%
Note: In the DALI command code, the value 255 means no change in brightness. The maximum
brightness level (100%) in DALI is 254. A 100 % brightness value of 255 via EIB / KNX is
automatically transformed to 254 in the DALI-Gateway. This fact is also taken into consideration
when reading out a brightness value. A maximum DALI value of 254 is transformed on the
EIB / KNX to 255.
11 Selected Device Slave Mode
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Channel X Selected Device Slave Mode [EIS 1; 1-bit switching]: Using this object, a slave
mode can be switched on or off for the DALI device which is selected via the object "Select
Device" (no. 7). The slave mode is used for the interaction of a device with a central lighting
controller using the "Brightness value/Status" object. This function can be switched on or off via
the bus using the communication object "Device Slave Mode".
The slave mode is deactivated after a download, mains voltage failure or EIB / KNX bus voltage
recovery.
Telegram value "1": Switch on slave mode
"0": Switch off slave mode
Note: The slave mode for all devices of channel X can be activated with the channel object
"Devices Slave Operation On/Off".
Object name Data type
Channel A or 4 bit (EIS 2)
Channel B DPT 3.007
Channel A or 8 bit (EIS 6)
Channel B DPT 5.001
Channel A or 1 bit (EIS 1)
Channel B DPT 1.003
Flags
C, W
C, W
C, R, W
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