Siemens SINUMERIK 840D sl Commissioning Manual page 108

Diagnostics/Service
8.2 Displaying and Editing System Resources
Data backup
Press the "Accept" softkey to transfer the temporary values of the displayed machine data to
the NC.
Press the "Cancel" softkey or the Recall key "^" to exit the detailed view without transferring
the change.
Note
Once you have pressed the "Accept" softkey, the "Cancel" softkey is no longer operative,
i.e., any changes you have made cannot be undone.
When you change the allocation of a memory, alarm 4400 "Machine data alteration will
cause reorganization of buffered memory (data loss)" appears.
Data are not backed up automatically, so to avoid data loss you must back up the data
yourself by performing an NCK reset before you transfer the MD change.
Memory allocation: Tool management
The following window is displayed by selecting the "Tool management" area and pressing
the "Details" vertical softkey:
Figure 8-2
108
SRAM tools
Commissioning HMI-Embedded (IM2)
Commissioning Manual, 01/2008, 6FC5397-8CP10-1BA0