Sequence For Block Search Of Type 1, 2 And 4 - Siemens SINUMERIK 828D Function Manual

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

Sequence for block search of Type 1, 2 and 4

Time sequence
The block search (Types 1, 2, and 4) proceeds as follows:
1. Activate search via input in HMI Advanced or HMI Embedded
2. Search target found, or alarm if target cannot be found
3. NC Start for output of action blocks
4. NC Start for program continuation.
Block search
starting
Block search
active (DB21, ...
DBX33.4)
Action block
active (DB21, ...
DBX32.3)
Last action block
active (DB21, ...
DBX32.6)
Channel status
Reset (DB21, ...
DBX35.7)
Channel status
interrupted
(DB21, ... DBX35.6)
Figure 9-2 Time sequence of interface signals
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
K1: Mode group, channel, program operation, reset response
Block search
Search target 1
starting
found
Search target 2 NC Start
found action blocks
being output
9.7 Block search
Last
action block
505