Robotics in Manufacturing

Backups & recovery

Memory Device (MD:) Backup on FANUC Controllers

For a technician running a File screen F4 BACKUP on a FANUC controller with the device set to MD: (the controller's internal Memory Device) to save controller files.

Basic~15 min6 steps

Stop all running programs

Confirm the robot's stopped and no program is mid-cycle before backing up.

Open the File screen

On the pendant, go to MENU, File, File.

Set the device to MD:

Use UTIL, Set Device and choose MD:. MD: is the controller's internal Memory Device storage unit, not a backup type.

Press F4 BACKUP and pick a documented item

Choose from the documented items: System files, TP programs, Application, Applic. TP, Error log, Diagnostic, Vision data, All of above, Maintenance, ASCII programs, or Image backup. Pick All of above to save the full set, or pick System files plus TP programs for a targeted save.

Confirm and run the backup

Accept the prompt and wait for the transfer to finish.

Verify the file list

Browse MD: and confirm the expected files were written.

Common questions

How long does this procedure take?
Memory Device (MD:) Backup on FANUC Controllers is rated Basic and takes about 15 minutes across 6 steps.
What tools do I need?
You will need Teach pendant.
What should I do before starting?
No program should be running. Robot stopped.
What is the first step?
Stop all running programs. Confirm the robot's stopped and no program is mid-cycle before backing up.

Attribution

Procedure steps on this page are checked against the site's editorial safety rules and manufacturer-manual sourcing standards.

Last reviewed: 2026-07-21.

Edited by Mike Ramsey / Reliable Media.Editorial process