HEIDENHAIN TNC 620 User Manual page 467

There are two ways to define the tool orientation:
In an LN block with the components TX, TY and TZ
In an L block by indicating the coordinates of the rotary axes
Example: Block format with tool orientation
1 LN X+31.737 Y+21.954 Z+33.165 TX+0.0078922 TY–0.8764339
TZ+0.2590319 RR F1000 M128
LN:
Straight line with 3-D compensation
X, Y, Z:
Compensated coordinates of the straight-line
end point
TX, TY, TZ:
Components of the normalized vector for
workpiece orientation
RR:
Tool radius compensation
F:
Feed rate
M:
Miscellaneous function
Example: Block format with rotary axes
1 L X+31.737 Y+21.954 Z+33.165 B+12.357 C+5.896 RL F1000
M128
L:
Straight line
X, Y, Z:
Compensated coordinates of the straight-line
end point
B, C:
Coordinates of the rotary axes for tool
orientation
RL:
Radius Compensation
F:
Feed rate
M:
Miscellaneous function
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
Three-dimensional tool compensation
12
12.6
467