HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 142)

7 Programming: Miscellaneous functions 126
Entering M112 in a positioning block
If you press the soft key M112 in a positioning block (in answer to
the ”Miscellaneous function?” prompt), the TNC then continues
the dialog by asking you for the permissible tolerance T and the
limit angle A.
You can also define E and H through Q parameters. See Chapter 10
”Programming: Q Parameters.”
Effect
M112 is effective during operation with velocity feedforward as
well as with servo lag.
M112 becomes effective at the start of block.
To cancel M112, enter M113.
Example NC block
N50 G01 G40 X+123.723 Y+25.491 F800 M112 E0.01 H10 *
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Hkap7.pm6 29.06.2006, 08:06 126