BSPLINE: Command to activate B spline interpolation
CSPLINE: Command to activate C spline interpolation
The ASPLINE, BSPLINE and CSPLINE commands are modally effective
and belong to the group of motion commands.
Points along a curve and check points:
X... Y... Z...
A... B... C...
Positions in Cartesian coordinates
Point weight (only B spline):
PW: Using the PW command, a so-called "point weight" can be programmed for
every point along the curve.
<n>: "Point weight"
Range of values: 0 ≤ n ≤ 3
Increment: 0.0001
Effect: n > 1 The checkpoint attracts the curve more
significantly.
n < 1 The checkpoint attracts the curve less sig‐
nificantly.
Spline degree (only B spline):
SD: A third degree polygon is used as standard, However, a second degree
polygon can also be used by programming SD=2.
Distance between nodes (only B spline):
PL : The distances between nodes are suitably calculated internally. The control
can also machine pre-defined node clearances that are specified in the so-
called parameter-interval-length using the PL command.
<value>: Parameter interval length
Range of values: As for path dimension
Transitional behavior at the start of the spline curve (only A or C spline):
BAUTO: No specifications for the transitional behavior. The start is determined by
the position of the first point.
BNAT: Zero curvature
BTAN: Tangential transition to the previous block (delete position)
Transitional behavior at the end of the spline curve (only A or C spline):
EAUTO: No specifications for the transitional behavior. The end is determined by the
position of the last point.
ENAT: Zero curvature
Work preparation
3.7 Special motion commands
NC programming
594 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0