Automatic Path Segmentation - Siemens SINUMERIK 840D sl Programming Manual

Punching and nibbling

14.2 Automatic path segmentation

14.2 Automatic path segmentation
Function
Segmentation into path segments
When punching or nibbling is activated, both SPP as well as also SPN segment the total
traversing section programmed for the path axes into a number of path segments with the
same length (equidistant path segmentation). Internally, each path segment corresponds to
a block.
Number of strokes
When punching, the first stroke is realized at the end point of the first path segment; on the
other hand for nibbling, at the starting point of the first path segment. Therefore the following
numbers are obtained over the complete traversing section:
Punching: Number of strokes = number of path segments
Nibbling: Number of strokes = number of path segments +1
Auxiliary functions
Auxiliary functions are executed in the first of the generated blocks.
Syntax
SPP=
SPN=
Meaning
SPP
SPN
574
Size of path segment (maximum distance between strokes);
modal
Number of path segments per block; modally effective
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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