HEIDENHAIN TNC 410 ISO Programming - Manual (Page 196)

170 7 Programming: Miscellaneous Functions
7.
5 Mis
c
ellaneous
F
unctions
f
o
r R
o
tary Ax
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s
Selecting tilting axes: M138 (not TNC 410)
Standard behavior
The TNC performs M114 and M128, and tilts the working plane, only
in those axes for which the machine tool builder has set the
appropriate machine parameters.
Behavior with M138
The TNC performs the above functions only in those tilting axes that
you have defined using M138.
Effect
M138 becomes effective at the start of block.
You can reset M138 by reprogramming it without entering any axes.
Example NC blocks
Perform the above-mentioned functions only in the tilting axis C:
G00 G40 Z+100 M138 C *