Datum setting (cycle g247), 9 coor di na te t ra n s for m a ti on cy cle s – HEIDENHAIN iTNC 530 (340 49x-02) ISO programming User Manual
Page 425

HEIDENHAIN iTNC 530
425
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DATUM SETTING (Cycle G247)
With the Cycle DATUM SETTING, you can activate a datum defined in
a preset table as the new datum.
Effect
After a DATUM SETTING cycle definition, all of the coordinate inputs
and datum shifts (absolute and incremental) are referenced to the new
preset.
8
Number for datum?:
Enter the number of the datum to
be activated from the preset table
Status displays
In the status display the TNC shows the active preset number behind
the datum symbol
Example: NC block
N13 G247 DATUM SETTING
Q339=4
;DATUM NUMBER
Z
Z
X
X
Y
Y
When activating a datum from the preset table, the TNC
resets the active datum shift. The following coordinate
transformations remain active:
Cycle G80, Tilting the working plane
Cycle G28, Mirroring
Cycle G73, Rotation
Cycle G72, Scaling
The TNC sets the preset only in the axes that are defined
with values in the preset table. The datums of axes
marked with – remain unchanged.
If you activate preset number 0 (line 0), then you activate
the datum that you last set with the axis keys in a manual
operating mode.
Cycle G247 is not functional in Test Run mode.