Siemens SINUMERIK 828D Function Manual page 513

Example: Sequence with cascaded block search
• RESET
• Block search up to search target 1
• Block search up to search target 2 → "Cascaded block search"
• NC Start for output of the action blocks → Alarm 10208
• NC Start → Continue program execution
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 9-3 Chronological order 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
513