12 profibus/profinet option – Lenze 8400 User Manual
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12
PROFIBUS/PROFINET option
12.3
Process data transfer
702
Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
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Fieldbus-specific device profiles and PDO mapping
When specific bus systems are used, the controller is to behave according to a defined,
manufacturer-spanning standard. The following definitions have been made for this:
• Definitions of the device state machine (e.g. DSP402, DriveCOM, ProfiDrive etc.)
• Definition of the bit assignment of control and status words
• Definition of signal scaling (on a limited scale)
• Definition of parameter scaling (on a limited scale)
• Definition of the process data mapping
These device profiles are not mapped in the communication option since some definitions have a
strong effect on the device-internal behaviour and the device profiles are not uniform regarding this
matter.
• The task of the communication option is
• to address parameters (SDOs),
• to transfer PDOs and
• the signal mapping of the PDOs.
• The process data objects (e.g. the meaning of the control word bits or the speed setpoint
stipulated) are interpreted in the drive controller.