Data Transfer - Siemens sinamics dcp Operating Instructions Manual

Operation
8.6 Communication via PROFINET IO
8.6.2.3

Data transfer

Properties
The PROFINET interface on a drive unit supports the simultaneous operation of:
● IRT – isochronous real-time EtherNet
● RT – real-time EtherNet
● Standard EtherNet services (TCP/IP, LLDP, UDP, and DCP)
PROFIdrive telegram for cyclic data transmission, acyclic 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 traffic, acyclic services can also be used for parameterizing and
configuring the drive unit. These acyclic services can be utilized by the IO supervisor or IO
controller.
Sequence of drive objects in the telegram
On the drive side, the sequence of drive objects in the telegram is displayed via a list in
p0978[0...24] where it can also be changed.
You can use the STARTER commissioning tool to display the sequence of drive objects for a
commissioned drive system in online mode in the project navigator under "Drive unit" >
"Communication" > "Telegram configuration".
When you create the configuration on the controller side (e.g. HWConfig), the process-data-
capable drive objects for the application are added to the telegram in this sequence.
The following drive objects can exchange process data:
● Control Unit CU_DC
● DC_CTRL
Note
The sequence of drive objects in HW Config must be the same as that in the drive (p0978).
The telegram structure depends on the drive objects taken into account during configuration.
Configurations are permitted that do not take into account all of the drive objects that are
present in the drive system.
Example:
The following configurations, for example, are possible:
● Configuration with CU_DC, DC_CTRL
● Configuration with DC_CTRL, and others
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Operating Instructions, 05/2016, A5E34382853K
SINAMICS DCP