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Technology functions
CPU 317T: Technology Functions
A5E00251798-03
6-189
Interpolating two cam segments
At the segment borders of a cam consisting of several segments, various kinds of
discontinuity may develop:
1. A gap between two segments is closed automatically by the interpolation. If the gap is smaller
than a specific limit value, it is closed by joining the interpolation points.
If the cam disk is created in S7T Config, the limit value of the gap can be specified in expert
mode (CamEdit > "Interpolation" Tab, activate "Expert mode" check box.
When the cam disk is created by means of the technology function MC_CamSectorAdd, the limit
value of the gap is set fixed to 1E-04. Above this limit, the gap is closed by interpolation; below
this limit, it is closed by joining the interpolation points.
2. When two successive segment have the same X coordinate, but different Y coordinates, this
discontinuity persists irrespective of the interpolation.
3. Of two overlapping successive segments, the start position of the successive segment (sector 2)
is used. The overlapping end position of the previous segment (sector 1) is truncated and
therefore lost. Overlapping segments are particularly prone to discontinuity at the segment
borders, because sector 1 is assigned a random Y value at the end of the segment (Y(X1)).
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