Siemens SINUMERIK 840D sl Function Manual page 907

Example:
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N90 $SC_TOFRAME_MODE=1
N100 ROT Z45
N110 TCARR=1 TCOABS T1 D1
N120 TOROT
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N100 describes a rotation by 45 degrees in the XY plane. It is assumed that the toolholder
activated in N110 rotates the tool by 30 degrees around the X axis, i.e., the tool lies in the YZ
plane and is rotated by 30 degrees relative to the Z axis. As a result the Z axis of the frame
newly defined in N120 also points in this direction (independently of the value in setting data
SD42980 $SC_TOFRAME_MODE in N90).
In the figure below, the situation for setting data setting
SD42980 $SC_TOFRAME_MODE=1
is shown:
The old and new X axes X and X' coincide in the projection in the direction of the old Z axis.
The old and new Y axes Y and Y' form an angle of 8.13 degrees (right angles are generally
not retained in the projection).
For setting data setting
SD42980 $SC_TOFRAME_MODE=2
, Y and Y' would coincide accordingly and X and X' would form an angle of 8.13 degrees.
For setting data setting
SD42980 $SC_TOFRAME_MODE=3
, X and X', as well as Y and Y', would each form an angle of 4.11 degrees.
Note
The named angles (8.13 and 4.11 degrees) are the angles, which the projections of the axes
form in the X-Y plane. They are not the spatial angles of these axes.
Basic logic functions: Axes, coordinate systems, frames (K2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Detailed description
2.4 Frames
123