Siemens SINUMERIK 840D sl Programming Manual page 608

Work preparation
3.7 Special motion commands
Shape of the curve in the XY plane
Description
The equation to express the polynomial function is generally as follows:
608
Y
2
1
X
4
3
2
1
0 1 2 3
Y
Result in XY plane
4
3
2
(PL)
3
1
2
1
0 1 2 3
f(p)= a + a p + a p + . . . + a
2
0 1 2
with: a : constant coefficients (i = 0, 1, ..., n)
i
p: Parameter
End point 2
p
End point 4
Example:
N9 X0 Y0 G90
N10 POLY PO[Y]=
(2) PO[X]
(4,0.25) PL=4
p
4 (PL)
4
X
4
p
n
n
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming