Omron MicroHAWK, Руководство по интеграции

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MicroHAWK Engine Integration Guide
6-17
Read Cycle
Capture Mode
Rapid Capture
Continuous Capture
Definition: Capture Mode relates to the way that images are captured and processed.
Serial Cmd:
< K241, capture mode ,number of captures,rapid capture mode,number of
continuous captures,images per read cycle limit,read cycle history >
Default: Continuous Capture
Options: 0 = Rapid Capture 1 = Continuous Capture
Definition: In a rapid capture mode, one or multiple captures (as many as 32) can be
taken at an interval specified by the time-between-captures parameter. In
this mode, the only limiting time factor is integration and transfer timing.
Usage: Continuous Capture is useful in applications with slower line speeds or
where symbol spacing may be random or not time-dependent.
Definition: In Continuous Capture Mode , image captures are taken throughout the
read cycle in a multi-buffered format (see diagram below). The reader
begins processing the first captured image at the same time that it captures
the second image. Captures will continue occurring throughout the read
cycle until an end condition occurs, such as a timeout, a new trigger, the
last frame in a capture sequence, or a combination of the above.
Processing time
End of
read cycle
Capture
Start of Read
Cycle
1 2 3 4
5