Art. No. SC 1000 KNX
4.2.4.1.8 Channel function "Scene extension"
1-byte brightness value telegrams in compliance with the KNX data point type 18.001
(SceneControl) can be transmitted to the bus by using the channel function "scene extension".
In this way, it is possible to control different KNX function units and thus, for example, set
lighting and shading systems situationally in combination with scene push button sensors or
actuators that have a scene function themselves. Furthermore, a scene of the scene function
internally stored in the Smart Control can be recalled or saved by means of this channel
function.
The channel function is always executed as a push-button function.
The "Function" parameter specifies how the scene extension works. This parameter has the
following settings...
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"Scene extension without storage function",
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"Scene extension with storage function",
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"Recall of internal scene without storage function",
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"Recall of internal scene extension with storage function".
In the scene extension function, the device transmits a preset scene number (1…64) via a
separate communication object to the bus during a sensor surface operation. This feature
permits recalling scenes stored in other devices and also storing them, if the storage function is
used.
The recall of an internal scene does not result in a telegram being transmitted to the bus. This
function can be used to recall or – with the storage function – to store the up to 8 scenes stored
internally in the local device as well.
The channel function "scene extension" distinguishes between short and long operations of the
sensor surface. In the setting "... without storage function", an operation triggers the simple
recall of a scene. A long operation has no additional effect.
In the setting "... with storage function", the device monitors the length of the actuation. A
sensor surface operation of less than five seconds results in a simple recall of the scene as
mentioned above. After an operation of more than five seconds, the device generates a storage
instruction. In the scene extension function, a storage telegram is in this case transmitted to the
bus. If configured for the recall of an internal scene, the sensor will store the internal scene. The
internal scene control module will then request the current scene values for the actuator groups
used from the bus.
The parameter "scene number on pressing the button" specifies which of the maximum of 8
internal or 64 external scenes is to be used during an operation.
i
It should be noted that in the setting "Internal scene recall..." the scene function of the
device must be enabled. This is done on the parameter page "scenes". If the scene
function is not enabled, no reaction occurs when a sensor surface is touched in this
configuration.
A KNX channel "scene extension" has a display element and sensor surface in the graphic
interface for operation. The display area and sensor area, depending on the existing operation
concept, are combined into one surface (direct operation) or distributed on two surfaces
(selection operation).
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Software "Smart Control 501511"
Functional description
