Art. No. DS 4092 TS
The rotary knob function "1-byte value transmitter" distinguishes three different functions...
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Value transmitter 0...255
In this function, the rotary knob transmits unformatted values within a range of "0...255"
according to the KNX data type 5.010. Such values are normally used for presettings for
counter statuses or limiting values.
Optionally, a value adjustment can be carried out by adjusting the rotary knob by a defined
rotation angle.
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Value transmitter 0…100 %
In this function, the rotary knob transmits formatted values within a range of "0...100%"
according to the KNX data type 5.001. Such a value formatting in percentage is normally
used for brightness value or position presettings.
Optionally, a value adjustment can be carried out by adjusting the rotary knob by a defined
rotation angle.
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Value transmitter comfort 0...255
This function supports the operation of the rotary knob for transmitting values dependent on
speed and rotation angle. Here, depending on the speed of rotation, a value adjustment is
possible by small and large step widths, thereby allowing the brightness of a lighting
system to be set finely and gradually. The value transmitted is normally unformatted within
the value range of "0...255" according to the KNX data type 5.010 in this function.
i
The only difference between the functions "value transmitter 0...255" and "value transmitter
0...100%" is the formatting of the value. The operation concepts for transmitting the values
or for value adjustment are identical for these functions.
The rotary sensor differentiates between different operations (e.g. transmit value 1, afterwards
value 2 / fast or slow operation in the operation concept "value transmitter comfort 0...255")
based upon the time that the rotary knob stands still after a completed operation. The "Time for
standstill after each movement" is configured in the ETS and should not be selected too short in
order to avoid unintended control operations - particularly during fast operations. If the device
detects additional operations immediately after a rotary movement (time not yet elapsed), it
evaluates the continuing movement of the rotary knob and executes further reactions as
described if necessary. The time for standstill detection is retriggered for each rotary knob
movement.
Value transmitter 0...255 and value transmitter 0...100%
With these functions, a distinction is made as to whether just a value recall takes place and
whether a value adjustment is also possible...
Function value adjustment disabled:
When operating the rotary knob, a 1-byte value telegram according to the ETS configuration is
already transmitted in this case after the first notch (minimum rotation angle) depending on the
direction of rotation. Different values can be preset for the clockwise or anticlockwise
movements of the rotary knob (figure 23). The values are always transmitted to the bus via the
same communication object.
i
If the direction of rotation changes without interruption during an operation, the rotary knob
does not transmit any further telegram. The device evaluates this operation as a wrong
operation.
i
The rotation angle (number of notches during a rotary movement) and the speed of rotation
have no significance for this function. During a new operation, a telegram is already
transmitted to the bus after the first notch (minimum rotation angle).
Page 59 of 143
Software "Rotary sensor with extensions 10FE1x"
Functional description
