Siemens Sinumerik 840D sl Programming Manual page 370

Transformations
6.7 Smoothing the orientation characteristic (ORISON, ORISOF)
Example
Program code
...
TRAORI()
ORISON
$SC_ORISON_TOL=1.0
G91
X10 A3=1 B3=0 C3=1
X10 A3=–1 B3=0 C3=1
X10 A3=1 B3=0 C3=1
X10 A3=–1 B3=0 C3=1
X10 A3=1 B3=0 C3=1
X10 A3=–1 B3=0 C3=1
X10 A3=1 B3=0 C3=1
X10 A3=–1 B3=0 C3=1
X10 A3=1 B3=0 C3=1
X10 A3=–1 B3=0 C3=1
...
ORISOF
...
The orientation is pivoted through 90 degrees on the XZ plane from -45 to +45 degrees. Due
to the smoothing of the orientation characteristic the orientation is no longer able to reach the
maximum angle values of -45 or +45 degrees.
Further information
Number of blocks
The orientation characteristic is smoothed over a configured number of blocks set in machine
data MD28590 $MC_MM_ORISON_BLOCKS.
Note
If smoothing of the orientation characteristic is activated with ORISON without sufficient block
memory having been configured for it (MD28590 < 4), an alarm signal will be output and the
function cannot be executed.
Maximum block path length
The orientation characteristic is only smoothed in blocks whose traversing distance is shorter
than the configured maximum block path length
(MD20178 $MC_ORISON_BLOCK_PATH_LIMIT). Blocks with longer traversing distances
interrupt smoothing and are traversed as programmed.
370
Comments
; Activation of orientation transformation.
; Activation of orientation smoothing.
; Orientation tolerance smoothing = 1.0 degrees.
; Deactivation of orientation smoothing.
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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