Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 223)

PC NC Maintenance Manual Chapter 8: Fixed File Operations
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8. The Dest tab now displays the amount of free space on the A:\
drive. Ensure this is larger than the size of programs to be copied
from the Src tab.
9. Touch the Copy button to begin copying files.
10. Ensure all programs are copied onto the device.