Description Of The Function - Siemens SINUMERIK 840D sl Function Manual

K1: Mode group, channel, program operation, reset response
9.7 Block search, types 1, 2, and 4:
Note
For further explanations regarding the block search, see Section "Behavior during block
search (Page 418)."
Subsequent actions
After completion of a block search, the following subsequent actions may occur:
● Type 1 - Type 5: Automatic Start of an ASUB
When the last action block is activated, a user program can be started as an ASUB.
● Type 1 - Type 4: Cascaded block search
A further block search with a different target specification can be started from "Search target
found".
9.7.1

Description of the function

Basic sequence for type 2 or type 4
1. User: Activation of the block search type 2 or type 4 (block search with calculation to ...)
via the operator interface
2. Search for the target block with collection of auxiliary functions
3. Stop after "Search target found ⇒ display of alarm 10208 "Continue program with NC start"
4. User: NC start to execute the action block s⇒ DB21, ... DBX7.1 = 1 (NC start)
5. Execution of the action blocks
6. Last action block is activated ⇒ Automatic start of /_N_CMA_DIR/_N_PROG_EVENT_SPF
(default) as an ASUB.
7. Last ASUP block (REPOSA) is activated ⇒ DB21, ... DBX32.6 = 1 (last action block active)
8. Optional: Execution of user-specific requirements via PLC user program
9. Display of the alarm 10208 "Continue program with NC start"?
10.User: Continue program with NC start ⇒ DB21, ... DBX7.1 = 1 (NC start)
Search target not found
If the search target is not found, alarm 15370 "Search target not found during block search" is
displayed and the block search is canceled.
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions