Detailed description
2.5 Block search
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
45
Execution behavior
Search target found, restart search
When the search target is reached, the program execution stops and the search target is
displayed as a current block. After each located search target, a new block search can be
repeated as often as you want.
Change search target specifications
You can change the search target specifications and block search function prior to each
block search start.
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
active (DB21, ...
DBX33.4)
Action block
active (DB21, ...
DBX32.3)
Block search
starting
Search target 1
found
Block search
starting
Search target 2
found
NC Start
action blocks
being output
Last
action block
Channel status
Reset (DB21, ...
DBX35.7)
Last action block
active (DB21, ...
DBX32.6)
Channel status
interrupted
(DB21, ... DBX35.6)
Figure 2-3 Chronological order of interface signals
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