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Technical Manual
Absolute Single/Multiturn Profibus Encoders
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PNO‐Ident‐Number
The Sendix Absolute Singleturn/Multiturn Encoder has the PNO‐Ident‐Number 5868 (Hex). This number is
registered at the PNO (Profibus User Organization) as an unique identification. The according GSD‐Files are named
as follows:
• Multiturn Series 7068,7088
• Singleturn Series 7058,7078
Start phase of the encoder on the PROFIBUS
When the encoder starts up it is in the 'Baud‐Search' state. Once the baud rate has been recognized, it switches
to the WAIT_PRM state and waits for the parameter data from the DP‐Master. The parameterisation occurs
automatically when the DP‐Master starts up. The following parameters are transmitted to the encoder: count
direction and the measuring length in steps (for more details, see the Encoder Profile from the PNO). When the
correct parameter data have been successfully transferred, the encoder switches to the WAIT_CFG state. The
PROFIBUS Master then sends a configuration byte to determine the number of inputs/outputs. If the
configuration byte is correct, the encoder switches to the state DATA_EXCHANGE.
Configuration and Parameterisation
The parameterisation, i.e. the transfer of the parameters for count direction, encoder resolution etc., normally
occurs within the configuration programme for the PROFIBUS Master used. To do this, the type file or GSD (device
file) should be copied to the respective directory for type or GSD files. With some programmes such as COM
PROFIBUS or STEP7 Manager, an update of the internal device list (hardware catalogue) must be carried out
within the software. For more information about integrating field devices, please refer to the documentation for
the software you are using.
The two steps described below are normally necessary for integrating and parameterising the encoder in a Master
system.
Configuration
For configuration purposes, i.e. to input the length and type of the I/O on the PROFIBUS, the configuration
programme normally provides an input mask (screen), in which – independently of the desired configuration – the
identifier has normally already been set as a default, so that only the I/O addresses remain to be entered.
Depending on the required configuration that is desired, the encoder allocates a varying number of input and
output words on the PROFIBUS.
The following parameters described are also dependent on the required configuration. The GSD device file (e.g.
KUEB7068.GSD) contains five required configurations for PNO Class1 and 2, each with 16‐ and 32 Bit resolution.
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KUEB7068.GSD
KUEB7058.GSD
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