HEIDENHAIN TNC 320 User Manual page 213

Data relative to block N: Direction and distance of the contour
element
Known data
Angle between a straight line and another
element or between the entry tangent of the arc
and another element
Straight line parallel to another contour element
Distance from a straight line to a parallel contour
element
Example NC blocks
17 FL LEN 20 AN+15
18 FL AN+105 LEN 12.5
19 FL PAR 17 DP 12.5
20 FSELECT 2
21 FL LEN 20 IAN+95
22 FL IAN+220 RAN 18
Data relative to block N: Circle center CC
Known data
Cartesian coordinates of the circle
center relative to block N
Polar coordinates of the circle center
relative to block N
Example NC blocks
12 FL X+10 Y+10 RL
13 FL ...
14 FL X+18 Y+35
15 FL ...
16 FL ...
17 FC DR- R10 CCA+0 ICCX+20 ICCY-15 RCCX12 RCCY14
TNC 320 | User's Manual HEIDENHAIN Conversational Programming | 5/2013
Path contours – FK free contour programming
Soft key
Soft key
6
6.6
213