HEIDENHAIN TNC 410 ISO Programming - Manual (Page 189)

HEIDENHAIN TNC 410, TNC 426, TNC 430 163
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Erasing modal program information: M142
(not TNC 410)
Standard behavior
The TNC resets modal program information in the following situations:
n Select a new program.
n Execute a miscellaneous function M02, M30, or an N999999 %...
block (depending on Machine Parameter 7300).
n
Defining cycles for basic behavior with a new value
Behavior with M142
All modal program information except for basic rotation, 3-D rotation
and Q parameters are reset.
Effect
M142 is effective only in the block in which it is programmed.
M142 becomes effective at the start of the block.
Erasing the basic rotation: M143 (not TNC 410)
Standard behavior
The basic rotation remains in effect until it is reset or is overwritten
with a new value.
Behavior with M143
The TNC erases a programmed basic rotation from the NC program.
Effect
M143 is effective only in the block in which it is programmed.
M143 becomes effective at the start of the block.