Siemens SINUMERIK 802D sl Programming And Operating Manual page 229

The description of the desired circle can be given in various ways:
Figure 10-16 Possibilities of circle programming with G2/G3 using the example of the axes X/Y and
G2/G3 remains active until canceled by another instruction from this G group (G0, G1, ...).
The path velocity is determined by the programmed F word.
Programming
G2/G3 X... Y... I... J...
G2/G3 CR=... X... Y...
G2/G3 AR=... I... J...
G2/G3 AR=... X... Y...
G2/G3 AP=... RP=...
Note
Further possibilities for circle programming result from:
CT - circle with tangential connection and
CIP - circle via intermediate point (see next sections).
Surface grinding
Programming and Operating Manual, 11/2012, 6FC5398-5CP10-3BA0
G2
; Center and end point
; Circle radius and end point
; Opening angle and center point
; Opening angle and end point
; Polar coordinates, circle around the pole
Programming
10.3 Axis movements
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