Siemens SINUMERIK 840D sl Configuration Manual page 119

Procedure
In order to change the schematic for the assignment of telegram I/O addresses of SINAMICS
Integrated (and of all connected NX modules), proceed as follows:
1. Click the NCU in the network or device view and select the "Addressing schematic" entry in
the "Properties" inspector window under "General".
2. Click the "Change addressing schematic" button.
The "Change I/O addressing schematic" dialog opens. If you select an option, the effects of
the change are listed here.
3. Select the required I/O addressing schematic and confirm the reconfiguration with "Yes".
Result
The I/O addressing schematic was changed.
If you use the optimized I/O addressing schematic, you must additionally enter the I/O
addresses in the machine data (Page 142) e.g. via SINUMERIK Operate.
If problems occur during the changeover, you can find further information in the "Info" inspector
window at "General".
SINUMERIK STEP 7 Toolbox V15.1
Configuration Manual, 12/2018, A5E46279635B AA
Configuring telegrams and drive units
6.4 Changing the addressing schematic
119