Siemens SINUMERIK 840D sl Function Manual page 636

N4: Own channel - only 840D sl
10.4 Automatic path segmentation
MD26016 $MC_PUNCH_PARTITION_TYPE=2
MD26016=2 is set in cases where the axis must behave as described above in linear
interpolation mode, but according to the default setting in circular interpolation mode (see 1st
case).
The axis behavior for the example is then as follows: In block N20, the C axis is rotated to
C=45° in the first sub-block. The following circular interpolation block rotates the C axis through
15° in every sub-block.
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Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions