Always create a backup of your current parameters before making any changes. Use a USB drive, RS232 cable, or Ethernet connection to dump the parameter file.

Once the list is finished, disable and power cycle the machine. Core FANUC Parameter Reference Table

| Backup Method | Best For | Typical Process | | :--- | :--- | :--- | | | Saving the complete state of the control, including all programs, offsets, and parameters, for full restoration after a battery failure or hardware replacement. | SYSTEM → SRAM DATA UTILITY → SRAM BACKUP (CNC → MEMORY CARD) . This saves everything as a proprietary binary file. | | Parameter Punch (Output) | Saving individual parameters or parameter files to transfer to a PC or another machine via RS232. | SYSTEM → PARAM → (OPRT) → PUNCH → EXEC . This outputs the data as a readable text file. |

Modifying a CNC parameter without a backup is a recipe for extended machine downtime. Before executing any update ( upd ), always complete the following steps:

Negative (-) direction Stored Stroke Limit 1.