Datum Shift - HEIDENHAIN TNC 320 User Manual

11.2 DATUM SHIFT (Cycle 7,
DIN/ISO: G54)
Effect
A DATUM SHIFT allows machining operations to be repeated at
various locations on the workpiece.
When the DATUM SHIFT cycle is defined, all coordinate data is based
on the new datum. The TNC displays the datum shift in each axis in
the additional status display. Input of rotary axes is also permitted.
Resetting
Program a datum shift to the coordinates X=0, Y=0 etc. directly with
a cycle definition
Call a datum shift to the coordinates
X=0; Y=0 etc. from the datum table
Cycle parameters
U
Datum shift: Enter the coordinates of the new datum.
Absolute values are referenced to the manually set
workpiece datum. Incremental values are always
referenced to the datum which was last valid—this
can be a datum which has already been shifted. Input
range: Up to six NC axes, each from -99999.9999 to
99999.9999
HEIDENHAIN TNC 320
Example: NC blocks
13 CYCL DEF 7.0 DATUM SHIFT
14 CYCL DEF 7.1 X+60
16 CYCL DEF 7.3 Z-5
15 CYCL DEF 7.2 Y+40
245