HEIDENHAIN TNC 620 User Manual page 259

Example NC blocks
N100 G01 G41 X+40 Y+40 F200 M3*
N110 G02 X+70 Y+40 R+20* (ARC 1)
or
N110 G03 X+70 Y+40 R+20* (ARC 2)
or
N110 G02 X+70 Y+40 R-20* (ARC 3)
or
N110 G03 X+70 Y+40 R-20* (ARC 4)
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
Path contours  Cartesian coordinates
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