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10. Exclusive Commands 2
10.5 External Search
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10.5.3 Search Start Instruction
After interface data between the controller and PLC is prepared, search is started by using the
following instruction:
ACT
S.DDBS Rn
(Rn is any file register that
can be used by the user.)
(Start condition)
10.5.4 Timing Charts and Error Causes
(1) Normal completion
Search processing
Search completion
Search start instruction
condition
Search error completion
Data specification error
(2) Search error completion
Search processing
Search completion
Search start
command condition
Search error completion
Data specification error
<Error cause>
・The specified program number or
sequence number is not found.
・The NC operation state is not reset
state any other search-impossible
state.