Siemens SINUMERIK 840Di Function Manual page 569

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)
Last action block
active (DB21, ...
DBX32.6)
Channel status
Reset (DB21, ...
DBX35.7)
Channel status
interrupted
(DB21, ... DBX35.6)
Fig. 2-3
2.5.4 Examples of block search with calculation
Selection
From the following examples, select the type of block search that corresponds to your task.
Mode Group, Channel, Program Operation, Reset Response (K1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Block search Search target 1
starting found
Chronological order of interface signals
Block search Search target 2
starting found
Detailed Description
2.5 Block search
Last
NC Start
action block
action blocks
being output
2-33