HEIDENHAIN TNC 320 User Manual page 248

Cycle parameters
U
Datum shift: Enter the number of the datum from the
datum table or a Q parameter. If you enter a
Q parameter, the TNC activates the datum number
entered in the Q parameter. Input range 0 to 9999
Selecting a datum table in the part program
With the SEL TABLE function you select the table from which the TNC
takes the datums:
U Select the functions for program call: Press the PGM
CALL key
U Press the DATUM TABLE soft key
U 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.
248
Example: NC blocks
77 CYCL DEF 7.0 DATUM SHIFT
78 CYCL DEF 7.1 #5
Cycles: Coordinate Transformations