Siemens SINUMERIK 828D Programming Manual page 252

Special Motion Commands
4.5 Polynomial interpolation (POLY, POLYPATH, PO, PL)
PL
Activating/deactivating polynomial interpolation
The polynomial interpolation is activated in the part program using the
The
the 1st group.
Axes, which are only programmed with name and end point (e.g.
all axes of an NC block are programmed in this way, the control behaves the same as for
G1.
The polynomial interpolation is implicitly deactivated again by programming another
command of the 1st G group
Polynomial coefficient
The
Several values are specified, separated by commas corresponding the degree of the
polynomial. Different degrees of polynomials are possible for various axes within one block.
POLYPATH subprogram
Using
groups:
The axes that are not released are linearly moved.
Polynomial interpolation is enabled as standard for both axis groups.
Polynomial interpolation is deactivated for all axes by programming without the
parameter.
252
:
G command together with
POLY
value or
PO (PO[]=) ...=PO(...)
... , the polynomial interpolation can be selectively released for certain axis
POLYPATH( )
Only path axes and supplementary axes:
Only orientation axes:
(when moving with orientation transformation)
Length of the parameter interval where polynomials
are defined (definition range of the function f(p)).
The interval always starts at 0, p can assume values
from 0 to PL.
Theoretical value range for PL:
0,0001 ... 99 999,9999
Note:
The PL value applies to the block in which it is loca-
ted. If no PL is programmed, then PL=1 is applied.
, , , ,
G0 G1 G2 G3 ASPLINE
, ).
G0 G1
specifies all polynomial coefficients for an axis.
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
G command.
POLX
, and
BSPLINE CSPLINE
), are linearly moved. If
X10
POLYPATH("AXES")
POLYPATH("VECT")
POLYPATH( )
belong to
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