Siemens Sinumerik 840D sl Programming Manual page 321

Figure 13-1
Plane change
If a plane change (G17, G18, G19) is programmed after a rotation, the current angles of
rotation of the respective axes are retained and are also effective in the new plane. It is
therefore strongly recommended that the current angles of rotation be reset to 0 before a
plane change:
● N100 ROT X0 Y0 Z0 ; explicit angle programming
● N100 ROT ; implicit angle programming
Absolute rotation with ROT X... Y... Z...
The WCS is rotated around the specified axes to the programmed angles of rotation.
Fundamentals
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Rotation around the Y axis or in the G18 plane
WARNING
Coordinate transformations (frames)
13.4 Programmable rotation (ROT, AROT, RPL)
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