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14.4. TriggerMode is set to ON and ExposureMode is set to TriggerWidth
When external trigger signal is POSITIVE (high active), after the trigger signal rise, exposure is start. At the trigger
signal falling edge, the internal VD signal is reset and the video data are transmitted. The trigger signal width equals
the exposure time.
High
Trigger
input(POSI)
Low
Shutter time
Data output
FVAL
(INTERNAL)
FLASH OUT
（10pin-OUT）
VD
（10pin-OUT）
(Note 14.4.1)
(*1) Trigger delay 1 = Rise time of photocoupler ＋ 0.26 µs + AcquisitionControl.TriggerDelay * 1.0 µs (Note 14.4.2)
(*2) Trigger delay 2 = Fall time of photocoupler ＋ 4.38 µs + AcquisitionControl.TriggerDelay * 1.0 µs (Note 14.4.2)
(*3) When DigitalIOControl.LineSource is set to "Timer1Active", Strobe delay is represented by following equation.
Strobe delay = CounterAndTimerControl.TimerDelay * 1.0 µs (Note 14.4.2)
When DigitalIOControl.LineSource is set to "ExposureActive", Strobe delay is set to zero.
(*4)
When DigitalIOControl.LineSource is set to "Timer1Active", CounterAndTimeControl.TimerDuration is set to
non-zero, Strobe width 1 is represented by following equation. (Note 14.4.3)
Strobe width 1 = CounterAndTimeControl.TimerDuration * 1.0 µs
When DigitalIOControl.LineSource is set to "ExposureActive" or DigitalIOControl.LineSource is set to
"Timer1Active" and CounterAndTimerControl.TimerDuration is set to zero, Strobe width equals Trigger width.
Strobe width 1 = Trigger width
(*5) Strobe width 2 = Shutter width - Strobe delay (*3) = Trigger width － (*1) + (*2) － (*3)
(Note 14.4.1) The setting value must be smaller than Frame rate. Otherwise, pulse signal could not be outputted.
(Note 14.4.2) Set the trigger and timer delays in the range from 0.0 to 2.0 seconds in us.
(Note 14.4.3) Set the Strobe width in the range from 0.0 to 2.0 seconds in us.
Trigger delay 2
(*2)
Trigger width
More than 10μs
Trigger delay 1
(*1)
Shutter width
②
Strobe delay
(*3)
Strobe width 1
(*4)
Strobe width 2
(*5)
More than ①
③
3H
1 H = 42.667μs
45
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