Siemens SINUMERIK 840Di sl Programming Manual page 245

Substituting statement, ROT X Y Z
The coordinate system is rotated through the programmed angle around the specified axes.
The center of rotation is the last specified settable zero offset (G54 to G599).
Caution
The ROT command cancels all frame components of the previously activated programmable
frame.
Note
A new rotation based on existing frames is programmed with AROT.
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
6.4 Programmable rotation (ROT, AROT, RPL)
Frames
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