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DAA03564
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5.12 Random Trigger Shutter
An image is captured at the desired timing using trigger signal input. External trigger signal from
trigger input connector and software trigger from control command via USB 3.1 Gen1 interface are
available (Edge mode / Bulk mode). Trigger polarity is selectable (High active / Low active).
Note that Random Trigger Shutter will cause a delay between trigger signal and start of exposure.
See 7. Timing Chart for detail.
In random shutter mode, the camera operates with global reset.
Operates with rolling shutter during binning.
- Edge mode: TriggerSequence0
Exposure of all the lines is simultaneously started in the timing of a trigger input.
The exposure time of first line is the manual set value of the electronic shutter.
Exposure
Trigger
Image
USB Streaming
Line 1
Line 2
Line 3
Line N
ExposureTime
- Bulk mode (FrameBurstTrigger): TriggerSequence6
Camera exposes and transfers multiple frames by a single trigger.
Exposure
(First line)
Trigger
ExposureTime
TriggerAdditionalParameter = 3
USB Streaming
Image
Image
Image
Notes on Random Trigger Shutter :
- In the period when FrameTriggerWait signal is inactive, user must not input external trigger signal to
this camera.
- When the interval of the input trigger signal is extremely short, or when the trigger signal is noisy,
there is a possibility of causing the malfunction. In this case, please input a proper trigger signal.
