17
Trigger Control
Free run/trigger mode
Free run
The camera operates without a trigger signal and performs image output operation continuously after the shutter
(exposure) is finished. The horizontal and vertical timing signals are generated within the camera. During free-run
operation, image pickup timing cannot be controlled. In free-run operation, adjustment is made automatically to achieve
the maximum frame rate according to the shutter setting.
Trigger mode
Exposure is started by detecting an external input trigger signal. When ExposureMode is set to Timed, exposure is
started by detecting the rising or falling edge of the trigger signal (trigger edge detection performed based on the set
shutter value). When ExposureMode is set to TriggerWidth, trigger width detection is performed (exposure during the
trigger signal pulse width).
Trigger source
A trigger source can be input via the DC power supply input connector or via software command (TriggerSoftware).
In trigger mode (TriggerMode=On)
Note
A combination of TriggerSource Software setting and ExposureMode TriggerWidth setting is not supported.
Trigger edge detection
The figure shows trigger signal negative polarity (falling-edge detection).
Feature
Parameter
Setting
TriggerMode
Off (0)
Free run
On (1)
Trigger mode
Feature
Parameter
Setting
TriggerSource
Line1 (0)
Pin 2 of the DC power supply input connector
Line2 (1)
Pin 3 of the DC power supply input connector
Software (4)
Software
Feature
Parameter
Setting
ExposureMode
Timed (0)
Trigger edge detection
TriggerWidth (1)
Trigger width detection
Trigger signal
Sensor output
Exposure
