HEIDENHAIN ITNC 530 - PILOT SMART NC Manual page 188

Setting
Mode for point assumption with circles and arcs: The
mode determines whether the TNC automatically
assumes the circle center point when selecting
machining positions via mouse click (OFF), or if
additional points on the circle should be shown as
well.
OFF
Do not show additional points on the circle.
Assume the circle center point directly when a
circle or arc is clicked.
ON
Do show additional points on the circle. Assume
each desired circle point by clicking it.
Mode for point assumption: Specify whether the
TNC should display the tool path during selection of
machining positions.
Please note that you must set the correct unit of measure,
since the DXF file does not contain any such information.
188
Soft key