Chapter 2 System Components within 400?s this is calculated by taking the 200?s hardware response for inputs + 200?s software response of the two changes at 100?s each. The above diagram represents the scenario of 4 input triggers transitioning simultaneously. After the voltage goes from high to low on the pins 0-3, it can take up to 200?s for the computer to register the level of inputs 0-3 and be read as logic highs. Once the logical low-to-high transition has occurred, each trigger response can take 100?s to process. In the case of 4 simultaneous transitions, it can take up to 600?s for the last trigger response.
If transitions occur simultaneously, the transitions will be processed in an indeterminate order. 2-14 Visionscape GigE Camera Guide