HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 512)

512 Touch Probe Cycles: Automatic Kinematics Measurement
1
9
.3 SA
VE KINEMA
TICS (Cy
c
le
450, DIN/ISO: G450; Option)
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).