HEIDENHAIN TNC 640 (34059x-04) Cycle programming - Manual (Page 553)

SAVE KINEMATICS (Cycle 450, DIN/ISO: G450, option) 19.3
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TNC 640 | User's Manual Cycle Programming | 3/2014
553
Notes on data management
The TNC stores the saved data in the file
TNC:\table\DATA450.KD.
This file can be backed up on an external PC with
TNCREMO, for
example. If the file is deleted, the stored data are removed, too.
If the data in the file are changed manually, the data records can
become corrupted so that they cannot be used anymore.
If the
TNC:\table\DATA450.KD file does not exist,
it is generated automatically when Cycle 450 is
executed.
Do not change stored data manually.
Make a backup of the TNC:\table\DATA450.KD file
so that you can restore the file, if necessary (e.g. if
the data medium is damaged).