Siemens SINUMERIK 840DE Programming Manual page 239

N10 TRANS X0 Z140
N.. ...
N30 TRANS X0 Z600
N40 AMIRROR Z0
N50 ATRANS Z120
N.. ...
Substituting instruction, MIRROR X Y Z
The mirror is programmed by means of an axial change of direction in the selected working
plane.
Example: Working plane G17 X/Y
The mirror (on the Y axis) requires a change of direction on X and is subsequently
programmed with MIRROR X0. The contour is then mirrored on the opposite side of the
mirror axis Y.
Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
6.7 Programmable mirroring (MIRROR, AMIRROR)
;Zero offset to W
;Machine first side with spindle 1
;Zero offset to spindle 2
;Mirroring of the Z axis
;Zero offset to W
1
;Machine second side with spindle 2
Frames
6-31