3 tnc, 4 software, Replacement – HEIDENHAIN TNC 407 (243 020) Technical Manual User Manual
Page 17: 3 tnc 407, 4 software replacement

3.3.3 TNC 407
Sockets on processor board:
IC 5
PLC
1MB
IC S
SW-Module
IC 3
Language 1MB
IC 4
Language 1MB
IC 1
2MB
IC 2
NC
2MB
3.4
Software replacement
Before replacing the software on a TNC the data of all file types, the machine parameter list, the non-
linear axis error compensation table and the PLC program (if in the RAM) must be backed up.
You can use the TNC BACKUP routine to do this. In the "Machine Parameter Editor" mode (code
number 95 148) press the MOD key to display the menu for configuring the data interface. The
"BACKUP DATA" and "RESTORE DATA" soft keys will be offered.
Use "BACKUP DATA" to transmit all operating parameters and the data of all file types across the data
interface and store them in the $BACKUP.ANC file. When software replacement is complete, use
"RESTORE DATA" to download the data to the TNC again.