Omron V440-F, User Manual

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4-15
4 Setup
V440-F C-Mount Code Reader User Manual
4-3 Cy
cle
4
4-
3-4 T
riggere
d Modes
Triggered Rapid Capture
is useful in applications where each decode must be treated as a discrete
event, regardless of symbol data. In this mode the read cycle starts with an initial trigger. During the
cycle, the reader will continuously acquire new captures based on subsequent triggers and place them
in a buffer. Each buffered image will be processed in turn until all symbols are found, all frames are
processed, or the
timeout
is reached.
Each new trigger should be sent when the code is expected to be in the field of view. The trigger
spacing should be set so the processing can keep up with the acquisition in order not to overrun and
overwrite the buffer pool. Typically this is set slightly longer than the processing time.
• Serial Trigger Character
– Sets the serial input trigger character. The reader will also respond to
an edge change on the physical trigger input.
• Capture Mode: Rapid Capture
– The reader will continuously acquire and process images.
Acquisition and processing are overlapped.
• Num Captures
– This is set to the number of captures required to see the codes after the initial trigger.
• Rapid Capture Mode = Triggered Capture
– The reader will acquire images on a triggered basis.
4-3-4-3 – Triggered with Capture Mode = Rapid Capture; Rapid
Capture Mode = Triggered Capture