Siemens SINAMICS DCM Operating Instructions Manual page 445

5. Assign the setpoint slot the type "direct data exchange".
6. Select the publisher DP address in the "PROFIBUS address" column.
All PROFIBUS DP slaves from which actual value data can be requested are listed here.
It also provides the possibility of sharing data via direct data exchange within the same
drive group.
7. The "I/O address" column displays the start address for each DO.
Select the start address of the DO data to be read. This is 200 in the example.
If the complete data of the publisher is not read, set this via the "Length" column. You
may also offset the start address for the request so that data can be read out in the
middle of the DO telegram.
Figure 10-23 Configuring the direct data exchange nodes
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A
Descriptions of functions
10.4 Communication via PROFIBUS DP
443