4 path contours—cartesian coordinates, Overview of path functions, Programming path functions – HEIDENHAIN TNC 320 (340 55x-05) ISO programming User Manual
Page 163

HEIDENHAIN TNC 320
163
6.4 P
a
th Cont
ours—Car
te
sian Coor
dinat
e
s
6.4 Path Contours—Cartesian
Coordinates
Overview of path functions
Programming path functions
You can program path functions conveniently by using the gray path 
function keys. In further dialogs, you are prompted by the TNC to 
make the required entries.
Function
Path function key
Tool movement
Required input
Page
Line L
Straight line
Coordinates of the end 
points of the straight line
Chamfer CHF
 
Chamfer between two 
straight lines
Chamfer side length
Circle Center CC
None
Coordinates of the circle 
center or pole
Circle C
 
Circular arc around a circle 
center CC to an arc end point
Coordinates of the arc end 
point, direction of rotation
Circular arc CR
 
Circular arc with a certain 
radius
Coordinates of the arc end 
point, arc radius, direction of 
rotation
Circular arc CT
 
Circular arc with tangential 
connection to the preceding 
and subsequent contour 
elements
Coordinates of the arc end 
point
Corner Rounding RND
 
Circular arc with tangential 
connection to the preceding 
and subsequent contour 
elements
Rounding radius R
If you enter DIN/ISO functions via a connected USB 
keyboard, make sure that capitalization is active.
