1248 HEIDENHAIN Technical Manual iTNC 530 HSCI
Canceling block scan
If block scan is canceled, it is for possible for the NC status and PLC status not
to match. A macro can be entered in NC MACRO.SYS after the keyword
STARTUPCANCEL = for this. This macro is always called when block scan is not
ended with RESTORE MACHINE STATUS. This macro brings the NC into
concordance with the actual condition of the machine (traverse range, spindle,
etc.).
MP7681 bit 4 enables you to activate an MP subfile during block scan. The MP
subfile is activated with FN17 ID1020.
MP7681 M/S/T/Q transfer to the PLC during block scan
Format: %xxxx
Input: Bit 0:
0: Transfer M functions to the PLC during block scan
1: Collect M functions and transfer to PLC after block scan.
Bit 1:
0: Transfer T code to the PLC during block scan
1: Transfer last T code to the PLC after block scan
Bit 2:
0: Transfer S or G code to the PLC during block scan
1: Transfer last S or G code to PLC after block scan
Bit 3:
0: Transfer FN19 outputs to the PLC during block scan
1: Transfer last FN19 outputs to the PLC after block scan
Bit 4:
0: MP subfiles are not activated during block scan
1: MP subfiles are activated during block scan
If bit 4 is set and the block scan is canceled nevertheless, the respective
changes will remain effective!
If required, you have to undo these changes in order to restore a consistent
state.
You can use a suitable NC macro for this, for example.
Set Reset
M4161 M/S/T/Q transfer after block scan NC NC
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