Heidenhain iTNC 530 (340 420) Manuel d'utilisateur Page 68

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40 4 Fundamentals of NC, File Management, Programming Aids, Pallet Management
4.2 File Management: Fundamentals
Data backup
We recommend saving newly written programs and files on a PC at
regular intervals.
You can do this with the free backup program TNCBACK.EXE from
HEIDENHAIN. Your machine tool builder can provide you with a copy
of TNCBACK.EXE.
In addition, you need a floppy disk on which all machine-specific data,
such as PLC program, machine parameters, etc., are stored. Please
contact your machine tool builder for more information on both the
backup program and the floppy disk.
Saving the contents of the entire hard disk (> 2 GB) can
take up to several hours. In this case, it is a good idea to
save the data outside of working hours, (e.g. overnight), or
to use the PARALLEL EXECUTE function to copy in the
background while you work.
Depending on operating conditions (e.g., vibration load),
hard disks generally have a higher failure rate after three to
five years of service. HEIDENHAIN therefore
recommends having the hard disk inspected after three to
five years.
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