Circular Interpolation Via Intermediate Point: Cip - Siemens sinumerik 802d sl Operation And Programming Manual

Programming
8.3 Axis movements
Programming example: Polar coordinates
Fig. 8-23
N1 G17
N5 G90 G0 X30 Y40
N10 G111 X40 Y33
N20 G2 RP=12.207 AP=21
8.3.4

Circular interpolation via intermediate point: CIP

Functionality
If you know three contour points of the circle, instead of center point or radius or aperture
angle, then it is advantageous to use the CIP function.
The direction of the circle results here from the position of the intermediate point (between
starting and end points). The intermediate point is written according to the axis assignment
I1=...
J1=...
CIP remains active until canceled by another instruction from this G group (G0, G1, G2, ...).
Note: The configured dimensional data G90 or G91 applies to the end point and the inter-
mediate point.
8-156
Y
Starting point
30
40
Example for circle with polar coordinates
; X/Y plane
; Circle starting point for N10
; Pole = circle center point
; Polar specifications
for the X axis,
for the Y axis.
SINUMERIK 802D sl Operation and Programming Nibbling (BP-N), 06/2006 Edition
AP=
Center point = pole
X
6FC5 398-3CP10-0BA0