Siemens SINUMERIK 840D sl Programming Manual page 201

S
E
M
r
t
Figure 2-4
Figure 2-5
Syntax
CT X... Y... Z...
Meaning
CT:
X... Y... Z... :
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Start point
End point
Center of circle
Circle radius
End tangents of the programmed contour of the last block with a traversing movement.
Tangentially to the straight section 1-2 connecting circular path S-E
Tangentially connecting circular paths depend on the previous contour element
Circular interpolation with tangential transition
Effective:
Circle end point in Cartesian coordinates.
Depending on the currently valid dimensional notation setting G90/G91
or ...=AC(...) / ...=IC(...), the circle end point coordinates are in‐
terpreted either in the absolute dimension or in the incremental dimension.
Modal
Fundamentals
2.9 Motion commands
201