Siemens SINUMERIK 828D Programming Manual page 235

4.2 Spline interpolation (ASPLINE, BSPLINE, CSPLINE, BAUTO, BNAT, BTAN, EAUTO, ENAT,
Syntax
General:
ASPLINE X... Y... Z... A... B... C...
BSPLINE X... Y... Z... A... B... C...
CSPLINE X... Y... Z... A... B... C...
For a B spline, the following can be additionally programmed:
PW=<n>
SD=2
PL=<value>
For A and C splines, the following can be additionally programmed:
BAUTO
EAUTO
Significance
Spline interpolation type:
ASPLINE
BSPLINE
CSPLINE
Points along a curve and check points:
X... Y... Z...
A... B... C...
Point weight (only B spline):
PW
<n>
Spline degree (only B spline):
SD
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
/ /
BNAT BTAN
/ /
ENAT ETAN
Command to activate A spline interpolation
Command to activate B spline interpolation
Command to activate C spline interpolation
The
and belong to the group of motion commands.
Positions in Cartesian coordinates
Using the
programmed for every point along the curve.
"Point weight"
Range of values: 0 ≤ n ≤ 3
Increment:
Effect:
A third degree polygon is used as standard, However, a second
degree polygon can also be used by programming
, and
ASPLINE BSPLINE CSPLINE
command, a so-called "point weight" can be
PW
0.0001
n > 1
n < 1
Special Motion Commands
ETAN, PW, SD, PL)
commands are modally effective
The checkpoint attracts the curve
more significantly.
The checkpoint attracts the curve
less significantly.
SD=2
.
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