HEIDENHAIN iTNC 530 (340 422) ISO programming - Manual (Page 209)

HEIDENHAIN iTNC 530 209
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Delete modal program information: M142
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.
Delete basic rotation: M143
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.