Microscan Quadrus EZ, User Manual, Page: 148 / 366

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Quadrus EZ Reader User’s Manual
Synchronous Trigger
Synchronous Trigger
Note: This feature only applies to the CCD image sensor.
Disabled
When disabled, the trigger event for an image capture is asynchronous with the video
frame. This means that when a trigger occurs, the video timing is reset and an image
capture occurs immediately. This causes flickering in an output monitor during image
captures because video timing needs to resync every time the video signal is reset.
Enabled (synchronous trigger)
When enabled, the trigger event for an image capture is synchronous with the video
frame. This means that when a trigger occurs the image captured is not released until the
start of the next video frame, which occurs every 16.68ms. The video timing never
changes and no effect is seen during image captures on the video monitor.
Restrictions
When the Synchronous Trigger mode is enabled, it will not take effect unless the following
conditions are met:
1. The CCD model is in use.
2. Shutter selection is 1/1200 or faster.
3. Live Video Mode is in effect.
Usage: Helps center the image on the video display.
Definition:
Configures the image capture trigger to be synchronous with the video
frame to allow for stable video during image capture events.
Serial Cmd: < K761,synchronous trigger mode >
Default: Disabled
Options:
0 = Disabled
1 = Enabled