Datum Setting - HEIDENHAIN TNC 320 User Manual

11.4 DATUM SETTING (Cycle 247,
DIN/ISO: G247)
Effect
With the DATUM SETTING cycle you can activate as the new datum
a preset defined in a preset table.
After a DATUM SETTING cycle definition, all of the coordinate inputs
and datum shifts (absolute and incremental) are referenced to the new
preset.
Status display
In the status display the TNC shows the active preset number behind
the datum symbol.
Please note before programming:
When activating a datum from the preset table, the TNC
resets the datum shift, mirroring, rotation, scaling factor
and axis-specific scaling factor.
If you activate preset number 0 (line 0), then you activate
the datum that you last set in a manual operating mode.
Cycle 247 is not functional in Test Run mode.
Cycle parameters
U Number for datum?: Enter the number of the datum
to be activated from the preset table. Input range 0 to
65535
Status displays
In the additional status display (POS. DISP. STATUS) the TNC shows
the active preset number behind the datum dialog.
HEIDENHAIN TNC 320
Example: NC blocks
13 CYCL DEF 247 DATUM SETTING
Q339=4 ;DATUM NUMBER
251