Microscan MS-850, Руководство пользователя

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Operations Menu
MS-850 Raster Scanner User’s Manual
2-17
2–Menu C
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fig
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End of Read Cycle
Default: Timeout
Options: Timeout, New Trigger, Timeout & New Trigger
Allows you to choose the circumstances that will end the read cycle. The read cycle is
the time during which the scanner will receive and process label data. When the Trig-
gering Mode option is set in an External or Serial mode of operation, the trigger event
initiates the read cycle.
Note : When operating in Continuous Read or Continuous Read 1 Output, the scanner
is always in the read cycle.
Timeout
Can end the read cycle after a specified period of time, and if no label has been read,
causes a noread message, if enabled, to be transmitted.
With either External Edge, Serial Data, or Serial Data & Edge enabled, a timeout ends
the read cycle.
With External Level enabled, the read cycle does not end until the falling edge trigger
occurs, and the next read cycle does not begin until the next rising edge trigger.
With Continuous Read 1 Output enabled, a timeout initiates a new read cycle and
allows the same label to be read again.
New Trigger
Ends the read cycle at the occurrence of a new trigger event, and if no label has been
read, causes a noread message, if enabled, to be transmitted at the occurrence of the
new trigger event.
With either External Edge, Serial Data, or Serial Data & Edge enabled, and edge or
serial trigger ends a read cycle and initiates the next read cycle. With External Level
enabled, a falling edge trigger ends a read cycle, However, the next read cycle does
not begin until the occurrence of the next rising edge trigger.
Timeout & New Trigger
Ends the read cycle after a specified period of time or at the occurrence of a new trig-
ger event, and if no label has been read, causes a noread message, if enabled, to be
transmitted.
With either External Edge, Serial Data, or Serial Data & Edge enabled, a timeout, or
an edge or serial trigger, whichever comes first, ends the read cycle.
With External Level enabled, the read cycle does not end until the occurrence of a fall-
ing edge, and the next read cycle does not begin until the next rising edge trigger.