Lenze L-force HighLine C 8400 Series Reference Manual page 688

8400 HighLine C | Reference manual
Fieldbus interface
Process data transfer
Voltage supply
Depending on the complexity and functional range of the fieldbus, the communication
modules are supplied by the standard device or an external 24 supply at the module.
The external 24 V voltage supply of the communication module is required if the supply of
the standard device fails but the communication via the bus is to continue.
Parameter setting of the communication modules
All codes which must be parameterised for establishing the fieldbus communication are
saved in the memory module of the controller.
The archived data can be addressed by all bus systems supported by the controller.
Hotplug
The communication module (MCI module) can be plugged in/out while the controller is
switched on. When the module is plugged in, it is automatically detected and checked for
plausibility regarding the function and version.
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 module 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 modules 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.
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