Siemens SINUMERIK 840D sl Commissioning Manual page 190

Commissioning NC-controlled drives
6.8 Modular machine
3. Navigate with the arrow keys to the drive object / component that is to be changed.
4. Press the "INSERT" key to enter the new designation.
In the example, the drive object is changed from number "3" to number "30".
Note
Effect
The change of the name and number is applied to the data in the target and actual
topologies of the drive software. Changing the comparison level affects the topology
comparison in the drive software.
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CNC Commissioning: NC, PLC, Drive
Commissioning Manual, 12/2019, A5E48312804B AA