Bit Scene - ABB i-bus KNX Product Manual

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ABB i-bus KNX
4.5

8 bit scene

© 2008 ABB STOTZ-KONTAKT GmbH
Planning and application
With the 8 bit scene, e.g. a pushbutton or a visualisation with an 8 bit
telegram, the system receives an instruction to set/recall a scene.
The information (brightness value and transition time) is not stored in the
pushbutton, but rather in the Light Controller and the other ABB i-bus
devices in the system. All scene devices, such as an output of the Light
Controller, are addressed by the same group address. It is sufficient to send
a single telegram to recall the scene with all outputs involved.
Recall scene no. <xx>
Short button
push
Actuator 1
In the 8 bit telegram value, the scene number which must match the scene
number in the parameters of the Light Controller is included.
Up to 64 different scenes can be managed via a single KNX group address.
An 8 bit scene telegram
•
Number of the scene (1...64)
•
Retrieve scene/store scene
In the following the 8 bit scene the function is described which controls
multiple KNX devices.
With the 8 bit scene it is possible to retrieve one of 64 scenes or to connect
multiple KNX devices in an 8 bit scene, e.g. shutter, switch actuator and
DALI gateways or Dim actuators. The scene can be retrieved or stored using
a single 8 bit telegram.
The precondition is that all operating devices or outputs of a device are
parameterised with the same scene number.
Each KNX device involved receives the 8 bit scene telegram and
independently controls the scenes values. For example, the outputs
are switched on or off via the Dim actuator, the shutters actuator moves
the shutters to a defined position or the DALI gateway dims its output to
the pre-programmed brightness values.
Up to 64 different scenes can be managed via a single KNX group address.
An 8 bit scene telegram
•
Number of the scene (1...64)
•
Retrieve scene/store scene
OFF ON
Actuator 2
(code table) contains the following information.
(code table) contains the following information.
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OFF
Actuator 3
110