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3.6
Cycle Buffer Function
With cycle buffer function, the reader images the target serially when the positions of
moving targets are scattered against the SYNC.
In SYNCMODE=1 (Reading Timeout Mode) or SYNCMODE=2 (External Trigger
Mode), the Cycle Buffer Function is enabled when the MAXIMG number is greater
than 1one (default is four 4). Set with the MAXIMG command. If the Cycle Buffer
Function is enabled, the reader captures multiple images after receiving the SYNC
signal and then saves the images to the buffer memory (up to 4 images). The reader
starts decoding from memory location #1, if it is not successful, the reader will
attempt to read the image saved in memory location #2. The decoding is attempted
during the interval between capturing images. When the buffer memory reaches the
final location, the next image will be saved into buffer memory location #1 if the
reader has finished decoding that image. If the reader has not finished with that
image, it will wait until the decoding has finished.
[Start]
WAIT
Capture
1
Decode
[Processing Standby Enabled(N≧17)]
Capture
N-1
N-16
Decode
1
WAIT
WAIT
2
3
1
WAIT
WAIT
N
N-15
Processing
Processing
Standby
Standby
33
WAIT
4
5
2
3
WAIT
N+1
N-14
WAIT
6
4
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