Siemens SINAMICS S120 Function Manual page 808

Basic information about the drive system
14.7 Write protection
3. Call the shortcut menu "Write protection drive unit > Activate".
Figure 14-13
Active write protection can be identified as in the expert list the input fields of adjustable
parameters p ... are shaded gray.
Note
Know-how protection with active write protection
If write protection is active, the know-how protection setting cannot be changed.
Note
Access via fieldbus
Per default, in spite of write protection, parameters can be changed via fieldbusses with
acyclic access. In order to activate write protection for access operations via fieldbuses also,
set p7762 to 1 in the expert list.
4. Select the "Copy RAM to ROM"
Deactivating write protection
1. Go online.
2. Select the required drive unit in the project navigator of your STARTER project.
3. Call the shortcut menu "Write protection drive unit > Deactivate".
The hatching in the expert list disappears after deactivation. The parameters can be set
again.
4. Select the "Copy RAM to ROM"
806
Activating write protection
icon to retentively save the settings.
icon to retentively save the settings.
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions