Siemens SINUMERIK 828D Function Manual page 511

Behavior when the read-in disable is set
Via the following channel-specific machine data it can be set, whether the activated ASUB are processed without
interruption despite a set read-in disable (DB21, ... DBX6.1 = 1), or whether the read-in disable is to be made
active:
MD20107 $MC_PROG_EVENT_IGN_INHIBIT
Bit Value Description
4 0 Read-in disable is active.
1 Read-in disable is suppressed.
Note
For moe information on parameterization of \MD11620, MD20108 and MD20107 see
"Parameter assignment [Page 581]".
Programming
The event that has started this ASUB can be determined by scanning the system variable $P_PROG_EVENT. In
case of an automatic activation after a block search $P_PROG_EVENT returns the value "5".
Sequence
Sequence of automatic start of an ASUB after a block search
1. Start block search (with/without calculation, at contour, at end­of­block point).
2. Stop after "Search target found".
3. NC Start for output of action blocks.
4. Last action block is activated.
5. Automatic start of /_N_CMA_DIR/_N_PROG_EVENT_SPF (default) as an ASUB.
6. The NC will stop after changing the last ASUB block (REPOSA command) and the following NC/PLC interface
signal is set:
DB21, ... DBX32.6 (last action block active)
The alarm 10208 "Enter NC-start for program continuation" is generated.
Note
If bit 0 is set to "1" in MD11450 $MN_SEARCH_RUN_MODE, then the alarm 10208 is
generated only when the PLC requests this by setting the following NC/PLC interface
signal:
DB21, ... DBX1.6 (PLC action complete)
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
K1: Mode group, channel, program operation, reset response
9.7 Block search
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