Siemens SINUMERIK 840D sl Programming Manual page 170

Geometry settings
8.3 Dimensions
Example 2: Turning
Program code
N5 T1 D1 S2000 M3
N10 G0 G90 X11 Z1
N20 G1 Z-15 F0.2
N30 G3 X11 Z-27 I=AC(-5) K=AC(-21)
N40 G1 Z-40
N50 M30
Note
For information on the input of the circle center point coordinates I and J, see Section
"Circular interpolation".
See also
Absolute and incremental dimensions for turning and milling (G90/G91) [Page 174]
170
Comment
; Loading of tool T1, spindle on with
clockwise direction of rotation.
; Absolute dimension input, in rapid
traverse to position XZ.
; Linear interpolation, feed of the tool.
; Counterclockwise circular interpolation,
circle end point and circle center point
in absolute dimensions.
; Traverse
; End of block
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals