Siemens SINAMICS DCM Operating Instructions Manual page 465

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 transfer, 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. HW Config), 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)
● Terminal Module 15 (TM15)
● Terminal Module 31 (TM31)
● Terminal Module 150 (TM150)
● DC drive control (DC_CTRL)
Note
The sequence of drive objects in HW Config must be the same as that in the drive (p0978).
The structure of the telegram 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, TM31, TM31
● etc.
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A
Descriptions of functions
10.5 Communication via PROFINET IO
463