5 Commissioning and Operation Kübler Group
32 - EN HB Profibus Interface - R67068.0002 - 01
5.4.5 Preset
In the 'Class 2' mode, the encoder can be preset via PROFIBUS to any position value within the
values range of 27 bits or 15 bits. This is done by setting the most significant bit (MSB) of
the output data (4 bytes for Class 2 configuration - 32 bits or 2 bytes for Class 1 configuration -
16 bits).
The preset value transmitted in data bytes 0 - 3 is taken over with the rising edge of bit 32 (= bit
7 of data byte 3) as the position value. The encoder goes on counting from this position. A new
setting is only possible after the control bit has been reset. This operation id not confirmed via
the inputs.
NOTICE
Warning message when performing the preset.
When performing the preset, the device issues a warning message,
since the position can change suddenly by a large value. This is an
intentional behavior and not an error.
5.5 Examples
5.5.1 Changing the Station Address with SSA
NOTICE
Use of SSA
The use of SSA is mainly suitable for devices without removable bus
cover.
ü Example of a software change of the station address for devices with removable bus cover.
(The following example uses a PROFIBUS master tool for parameterizing.)
a) Remove the bus cover and set the rotary switches to position 0xFF (255 decimal).
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