Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 225)

PC NC Maintenance Manual Chapter 8: Fixed File Operations
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6. Go to the Program: File screen.
7. Touch the Look In drop down menu and select ‘D:\macro\’.
8. Select all the programs to be backed up.
9. Touch the Dest tab at the top.
10. Touch the Look In drop down menu and select 'A:\'.
11. Touch the Copy button.