Siemens SINUMERIK 828D Programming Manual page 352

Coordinate transformations (frames)
12.1 Frames
Programmable frames
Sometimes it is useful or necessary to move the originally selected workpiece coordinate
system (or the "settable zero system") to another position within an NC program and, if
required, to rotate it, mirror it and/or scale it. This can be achieved using programmable
frames.
See Frame instructions (Page 353).
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Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Fundamentals