Siemens SINUMERIK 840DE sl Function Manual page 195

Contour accuracy
The maximum deviation from the programmed contour and tool orientation permitted during
compression is set with the following setting data:
● SD42475 $SC_COMPRESS_CONTUR_TOL = <maximum contour deviation>
● SD42476 $SC_COMPRESS_ORI_TOL = <maximum angular deviation of the tool
orientation>
Only effective with orientation transformation.
● SD42477 $SC_COMPRESS_ORI_ROT_TOL = <maximum angular deviation of the tool
orientation>
Only effective with orientation transformation in conjunction with 6-axis transformation.
Note
A maximum deviation of tool orientation can only be specified if an orientation transformation
is active (TRAORI).
Compression mode
With the machine data, the following decimal-coded functions are parameterized:
● Units digit: Taking into account tolerances
● Tens digit: Compression of blocks with programmed tool orientation and / or value
assignments.
● Hundreds digit: Compression of blocks, except linear blocks (G1).
● Thousands digit: Compression for specific applications.
MD20482 $MC_COMPRESSOR_MODE = <value>
Val‐
ue
xxx0 Geometry and orientation axes
xxx1 Geometry axes
xxx2 Geometry axes
xxx3 Geometry axes
xx0x Blocks with programmed tool orientation and/or value assignments are compressed.
xx1x Blocks with programmed tool orientation are compressed.
Transformations
Function Manual, 06/2019, A5E47435470B AA
Meaning
Orientation axes
Orientation axes
Orientation axes
(Compression of blocks with programmed tool orientation and / or value assignments)
Blocks with value assignments are not compressed.
Units digit
(Effective tolerance specifications)
MD33100 $MA_COMPRESS_POS_TOL
SD42475 $SC_COMPRESS_CONTUR_TOL
MD33100 $MA_COMPRESS_POS_TOL
MD33100 $MA_COMPRESS_POS_TOL
SD42476 $SC_COMPRESS_ORI_TOL
SD42477 $SC_COMPRESS_ORI_ROT_TOL
SD42475 $SC_COMPRESS_CONTUR_TOL
SD42476 $SC_COMPRESS_ORI_TOL
SD42477 $SC_COMPRESS_ORI_ROT_TOL
Tens digit
F2: Multi-axis transformations
3.9 Orientation
195