Boolean intersection issue

I need help understanding the passage Boolean ptbypt and I need help for her to run only once, from bottom to top. (or true false) I'm trying to catch a digital input when it goes from low to high. I want to catch the first low to high, then go in my code. (registration data). Right now I measure data on secondary 2, I want to change that to capture data as soon as my DI goes from low to high, only once.

Use a feedback node that will be followed if the Boolean crossing happened before or not.  (You can use the Boolean output from a level crossing as the input to another to detect this.)

Remember Feedback nodes and Shift Registers to keep track of what's happened in the past.  You just need to Boolean logic with Boolean such as functions and and or to do the rest.

Tags: NI Software

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