Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 281)

PC NC Maintenance Manual Chapter 8: Fixed File Operations
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16. Apboot begins uploading the CNC system to the CNC card flash
memory. Progress is shown in the status bar.
17. When Apboot has finished, it displays the total check sum.
18. Click the End button to go back to the Apboot main menu.