HEIDENHAIN TNC 426 (280 476) Pilot - Manual (Page 6)

7
Fundamentals
Incremental Cartesian Coordinates
The dimensions are measured from the last programmed position of
the tool.
The tool moves by the incremental coordinates.
Absolute Cartesian Coordinates
The dimensions are measured from the current datum.
The tool moves to the absolute coordinates.
Programmable axes in an NC block
Linear motion: 5 axes
Circular motion: 2 linear axes in a plane or
3 linear axes with cycle 19 WORKING PLANE