HEIDENHAIN TNC 640 (34059x-02) Cycle programming - Manual (Page 248)

Cycles: Coordinate Transformations
11.3 DATUM SHIFT with datum tables (Cycle 7, DIN/ISO: G53)
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TNC 640 | User's Manual Cycle Programming | 5/2013
Selecting a datum table in the part program
With the
SEL TABLE function you select the table from which the
TNC takes the datums:
Select the functions for program call: Press the
PGM CALL key
Press the DATUM TABLE soft key
Select the complete path name of the datum table
or the file with the SELECT soft key and confirm
your entry with the END key
Program a
SEL TABLE block before Cycle 7 Datum
Shift.
A datum table selected with
SEL TABLE remains
active until you select another datum table with
SEL
TABLE or through PGM MGT.
Editing the datum table in the Programming and
Editing mode of operation
After you have changed a value in a datum table, you
must save the change with the ENT key. Otherwise
the change might not be included during program
run.
Select the datum table in the
Programming and Editing mode of
operation
Call the file manager: Press the PGM MGT key
Display the datum tables: Press the SELECT TYPE
and SHOW .D soft keys
Select the desired table or enter a new file name.
Edit the file. The soft-key row comprises the
following functions for editing: