Siemens SINUMERIK 840D sl Commissioning Manual page 206

Safety Integrated
18.5 Copying and confirming Safety Integrated data
200
Press the "Axis MD" softkey and select an axis using the "Axis +" or
"Axis -" softkey if you want to edit axis-specific machine data for the
selected axis and want to copy safety data.
...
4. Press the "Copy SI data" and "OK" softkeys. Safety-relevant drive
machine data is transferred and overwritten.
5. Press the "Reset (po)" and "OK" softkeys.
The controller restarts (warm restart).
6. Press the "Confirm SI data" and "OK" softkeys.
The correctness of the values is confirmed and the current checksum
saved.
The drive data is saved automatically
Commissioning Manual, 01/2008, 6FC5397-1DP10-3BA0
HMI sl (IM9)