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12 profibus/profinet option – Lenze 8400 User Manual

Page 702

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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.