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C11440-42U/C11440-42U01 Instruction manual_Ver.1.1
9-6-2-2
Level trigger mode
The level trigger mode is used to control both exposure start timing and exposure time length by
inputting external trigger pulses. In the mode, the camera starts exposure at the start of high or
low period of the input trigger pulse and stops exposure at the end of high or low period of the
input trigger pulse. The example below is for the trigger level High. The exposure of the first line
begins when the trigger signal becomes High, and the exposure of the second line begins after
the readout time of line one passes. Each exposure begins one by one for each line. The
exposure of the first line is finished when the trigger signal becomes low, and signal readout is
begun. The exposure time of each line is defined by the time that the input trigger is high. The
minimum trigger pulse width is 1 ms + 50 µs.
Figure 9-6 (Ex. rising edge)
26
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