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Trigger Control
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Trigger Control
Free run/trigger mode
Free run
The camera operates without a trigger signal and performs the video output operation continuously after the shutter
(exposure) is finished. The horizontal and vertical timing signals are generated within the camera. During the free-run
operation, image pickup timing cannot be controlled. In the free-run operation, the adjustment is made automatically to
achieve the maximum frame rate according to the shutter setting.
Trigger mode
Exposure is started by detecting the externally input trigger signal. When ExposureMode is 0, exposure is started by
detecting the rising or falling edge of the trigger signal and the trigger edge detection (exposure is performed based on
the set shutter value) is performed. When ExposureMode is 1, the trigger width detection (exposed for the period of the
trigger signal width) is performed.
For trigger mode (TriggerMode=On)
Trigger edge detection
The figure shows the trigger signal negative polarity (detecting the drop edge).
Trigger width detection
The figure shows the trigger signal negative polarity (detecting Low level width).
Register
Parameter
Setting
TriggerMode
Off (0)
Free run
On (1)
Trigger mode
Register
Parameter
Setting
ExposureMode Timed (0)
Trigger edge detection
TriggerWidth (1) Trigger width detection
Trigger signal
Exposure
Sensor output
Trigger signal
Exposure
Sensor output