Siemens SINUMERIK 840D sl Function Manual page 614

Detailed description
2.6 Block search Type 5 SERUPRO
Identification of the active SERUPRO in the interface.
DB21, ... DBX318.1
The VDI signal of the NCK channel (NCK→PLC):
DB21, ... DBX318.1 (block search via program test is active)
has the following meaning and effect:
The NC runs in the internal "Program test" mode until the target block of the search is
activated in the main run and the program status changes to "Stopped".
During this time, interface "Block search via program test is active" is set to 1.
For userdefined ASUB after the SERUPRO operation
Note
If the machine manufacturer decides to start an ASUB after the SERUPRO operation as
described in item 7, the following must be observed:
Stopped status acc. to point 6. :
Machine data:
MD11602 $MN_ASUP_START_MASK
and
MD11604 $MN_ASUP_START_PRIO_LEVEL
allow the NCK to start the ASUB from stopped status automatically via the FC9 block.
Acknowledgement of FC9 only after completion of REPOS block:
The ASUB can only be signaled as complete from the FC9 block with "ASUB Done" if the
REPOS block has also been completed.
Deselection of assigned REPOS operation after Item 8:
The start of the ASUB deselects the assigned REPOS operation!
Therefore, the ASUB should be ended with REPOSA in order to retain the REPOS
operation.
Deleting an unwanted REPOS operation:
The unwanted REPOS operation is deleted by completing the ASUB with M17 or RET.
Special handling of ASUB:
As a basic rule, an ASUB that ends with REPOS and is started from stopped status receives
special treatment.
The ASUB stops automatically before the REPOS block and indicates this via:
DB21, ... DBX318.0 (ASUB stopped)
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Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0