Siemens Sinumerik 840D sl Programming Manual page 171

Example
Creation of a drilling pattern
Program code
N10 G17 G54
N20 G111 X43 Y38
N30 G0 RP=30 AP=18 Z5
N40 L10
N50 G91 AP=72
N60 L10
N70 AP=IC(72)
N80 L10
N90 AP=IC(72)
N100 L10
N110 AP=IC(72)
N120 L10
N130 G0 X300 Y200 Z100 M30
See also
Circular interpolation types (G2/G3, ...) (Page 178)
Fundamentals
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
10.3 Travel commands with polar coordinates
The positions of the holes are specified in polar
coordinates.
Each hole is machined with the same produc‐
tion sequence:
Rough-drilling, drilling as dimensioned, ream‐
ing ...
The machining sequence is stored in the sub‐
program.
Comment
; Working plane X/Y, workpiece zero.
; Specification of the pole.
; Approach starting point, specification in cy-
lindrical coordinates.
; Subprogram call.
; Approach next position in rapid traverse, polar
angle in incremental dimensions, polar radius
from block N30 remains saved and does not have to
be specified.
; Subprogram call.
.
...
...
...
; Retract tool, end of program.
Motion commands
171