Siemens SINUMERIK 840D sl Programming Manual page 338

Coordinate transformation (FRAMES)
5.6 Frame calculation from three measuring points in space (MEAFRAME)
Program code
N700 G500
No_FRAME
M0
M30
Example of concatenating frames
Chaining of MEAFRAME for offsets
The MEAFRAME( ) function provides an offset frame. If this offset frame is concatenated
with a set frame $P_UIFR[1] that was active when the function was called, e.g., G54,
one receives a settable frame for further conversions for the procedure or machining.
Concatenation with ADDFRAME
If you want this offset frame in the frame chain to apply at a different position or if other
frames are active before the settable frame, the ADDFRAME( ) function can be used for
chaining into one of the channel basic frames or a system frame.
The following must not be active in the frames:
● Mirroring with MIRROR
● Scaling with SCALE
The input parameters for the setpoints and actual values are the workpiece coordinates.
These coordinates must always be specified
● metrically or in inches (G71/G70) and
● with reference to the radius (DIAMOF)
in the basic system of the controller.
338
Comments
; Deactivate settable frame as with
zero frame (no value entered,
pre-assigned).
; Deactivate settable frame, as
pre-assigned with zero frame (no
value entered).
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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