Kübler Group 5 Commissioning and Operation
HB Profibus Interface - R67068.0002 - 01 EN - 23
Class C1
Class C2
Class C2
Physical position
Basic function
Absolute position
Scaling function
Preset function
Output position value
• Class C1 describes all basic functions the encoder is to offer.
• Class C2 includes a wide range of extended functions, which have to be supported by the
encoders of this class (mandatory) or which are optional. So devices of class C2 include all
C1 and mandatory C2 functions, as well as further manufacturer-specific optional functions.
Moreover, an address range, which can receive manufacturer-specific special functions, is
defined in the profile.
5.3.2 The Requirements Profile
The connection between the decentralized process flow and the central control through the
communication system takes place at the lowest hierarchical level via the field or process bus.
At this level, the main requirements are a simple protocol procedure and short data transmis-
sion times for the communication.
This ensures the shortest system response time possible to the dynamic states of the peripheral
devices. Besides the classical data exchange, the acyclic transmission of parameter, diagnostic
and configuration data must be possible too without fundamentally affecting the real-time cap-
ability of the bus. This is the only way to ensure a good diagnostic and safe operation.
5.3.3 Slave Mode
This description contains information about the implementation of the PROFIBUS DP transmis-
sion protocol in the slave mode on our devices. The scope of the described functions can be
limited according to the device or to the application In particular, less functions are generally
used in the event of protocol conversions.
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