Cognex 821-0116-3R, Справочник

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Acquisition Trigger
The acquisition trigger input to the sensor is opto-isolated, and the sensor will respond to a trigger event when the
voltage difference between the Trig+ and Trig- inputs exceeds 10V.
Trigger Circuit
24V max across the input pins - Transition approx. 10V (Min.)
To configure the acquisition trigger as a sourcing input, connect the Trig+ terminal to the high-voltage reference (24
VDC) and the Trig- terminal to the output of the photo-electric sensor.
Trigger (source)
To configure the acquisition trigger as a sinking input, connect the Trig- terminal to the low voltage reference (ground)
and the Trig+ terminal to the output of the photo-detector or PLC.
Trigger (sink)
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Image Acquisition