Siemens SINUMERIK 840Di sl Programming Manual page 137

Examples for turning
Incremental dimension
N120 G0 X12 Z0
N125 G1 X40 Z-25 F0.2
N130 G3 X70 Z-75 I-3.335 K-29.25
N135 G1 Z-95
Absolute dimensions
N120 G0 X12 Z0
N125 G1 X40 Z-25 F0.2
N130 G3 X70 Z-75 I=AC(33.33) K=AC(-54.25)
N135 G1 Z-95
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
4.6 Circular interpolation with center point and end point (G2/G3, I=, J=, K=AC...)
Motion commands
137