Velocity Edge GX440 Instructions d'exploitation Page 254

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Operation
6.8 PROFINET IO
Drive converter cabinet units
254 Operating Instructions, 10/2008, A5E00288214A
6.8.2.4 Data transmission
Features
The Communication Board CBE20 supports:
IRT – isochronous real-time Ethernet
RT – real-time Ethernet
Standard Ethernet services (TCP/IP, LLDP, UDP and DCP)
PROFIdrive telegram for cyclic data transmission and non-cyclic services
Telegrams to send and receive process data are available for each drive object of a drive
unit with cyclic process data exchange. In addition to cyclic data transfer, acyclic services
can also be used for parameterizing and configuring the drive. These acyclic services can be
used by the supervisor or the controller.
The total length of the Ethernet frame increases with the number of drive objects in a drive
unit.
Sequence of drive objects in the data transfer
The sequence of drive objects is displayed via a list in p0978[0...15] where it can also be
changed.
Note
The sequence of drive objects in HW Config must be the same as that in the drive (p0978).
NOTICE
A ring-type topology is not permissible.
6.8.3 Further information about communication via PROFINET IO
Further information about communication via PROFINET IO
For more information about the PROFINET IO communication, refer to the section
"PROFIBUS DP/PROFINET IO communication" in the documentation "SINAMICS S120
Function Manual".
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