Denso QB30-SR, User Manual

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(OK, NG, READY signal output timing example)
Refer to"4.1 External I/O Terminal Equivalent Circuit" for the output circuit specifications.
11.4 Data output Timing
Following the completion of scanning, the data output timing for the transfer of data to the host can be selected from
either synchronous or asynchronous mode using the commands or configuration software.
Decode
OFF ON Scan timing
Synchronous mode
Data output
Decode Success
Data output
Asynchronous mode
Success
NG output
OK output
Success
OFF
ON
Scan timing
NG signal output
OK signal output
Synchronous mode
Success Decode
Asynchronous mode
Decode OK output
Decode Decode
Delay time
READY signal output (when scanning successful)
Asynchronous mode
Decode
READY signal output (when scanning unsuccessful)
Data output
READY output
READY
output
Decode Fail
READY
output
READY output
Fail
Delay time
READY
output
Synchronous mode
READY output
Decode Success
Data output
Success
Decode
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