HEIDENHAIN SW 54843x-02 DIN Programming - Manual (Page 478)

478 DIN programming for the Y axis
6.2 Cont
ours in the XY plane
6.2 Contours in the XY plane
Starting point of contour in XY plane G170 Geo
G170 defines the starting point of a contour in the XY plane.
Line segment in XY plane G171 Geo
G171 defines a line segment in a contour of the XY plane.
Parameters
X
Starting point of contour (radius)
Y Starting point of contour
Parameters
X
End point (radius)
Y End point
AN Angle to X axis (for direction of angle, see help graphic)
Q Point of intersection. End point if the line segment intersects a
circular arc (default: 0):
 0: Near point of intersection
 1: Far point of intersection
BR Chamfer/rounding. Defines the transition to the next contour
element. When entering a chamfer/rounding, program the
theoretical end point.
 No entry: Tangential transition
 BR=0: No tangential transition
 BR>0: Rounding radius
 BR<0: Width of chamfer
Programming X, Y: Absolute, incremental, modal or "?"