HEIDENHAIN iTNC 530 (34049x-08) ISO programming - Manual (Page 488)

488 Manual operation and setup
14.4 D
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Activating a datum from the preset table in the Manual Operation
mode
Select the Manual Operation mode
Display the preset table
Select the datum number that you want to activate, or
With the GOTO key, select the datum number that
you want to activate. Confirm with the ENT key.
Activate the preset
Confirm activation of the datum. The TNC sets the
display and—if defined—the basic rotation
Exit the preset table
Activating a datum from the preset table in an NC program
To activate datums from the preset table during program run, use
Cycle 247. In Cycle 247 you only define the number of the datum that
you want to activate (see User's Manual for Cycles, Cycle 247 SET
DATUM).
Danger of collision!
When activating a datum from the preset table, the TNC
resets the active datum shift.
However, a coordinate transformation that was
programmed in Cycle 19 Tilted Working Plane, or through
the PLANE function, remains active.
If you activate a datum that does not contain values in all
coordinates, the last effective datum remains active in
these axes.