Siemens SINUMERIK 840Di sl Programming Manual page 152

Motion commands
4.12 Helical interpolation (G2/G3, TURN=)
Programming
G2/G3 X... Y... Z... I... J... K... TURN=
Or
G2/G3 X... Y... Z... I... J... K... TURN=
Or
G2/G3 AR=... I... J... K... TURN=
Or
G2/G3 AR=... X... Y... Z... TURN=
Or
G2/G3 AP... RP=... TURN=
Parameters
G2
G3
X Y Z
I J K
AR
TURN=
AP=
RP=
Note
G2 and G3 are modal.
The circular movement is performed on the axes specified by the working plane.
152
Travel on a circular path in clockwise direction
Travel on a circular path in counterclockwise direction
End point in Cartesian coordinates
Circle center point in Cartesian coordinates
Opening angle
Number of additional circle passes within the range 0 to 999
Polar angle
Polar radius
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals