Siemens SINUMERIK 840D sl Programming Manual page 344

Coordinate transformations (frames)
12.3 Programmable zero offset
Examples
Example 1: Milling
Program code
N10 G1 G54
N20 G0 X0 Y0 Z2
N30 TRANS X10 Y10
N40 L10
N50 TRANS X50 Y10
N60 L10
N70 M30
344
With this workpiece, the illustrated shapes
recur several times in the same program.
The machining sequence for this shape is
stored in a subroutine.
Work offset is used to set the workpiece
zeros required in each case and then call the
subprogram.
Comment
; Working plane X/Y, workpiece zero
; Approach starting point
; Absolute offset
; Subroutine call
; Absolute offset
; Subroutine call
; End of program
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals