Hold a value indefinitely once a condition becomes true

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Fawad Farooq Ashraf
Fawad Farooq Ashraf 2022-10-13
评论： Fawad Farooq Ashraf 2022-10-13
I have a simulink block diagram which gives true or false based on a condition (relational operator). My problem is that once I get true for the first time, I want to stop checking the condition and just output true for the rest of simulation time. How can I do that in SIMULINK?

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Jim Riggs
Jim Riggs 2022-10-13
Try This:

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Les Beckham
Les Beckham 2022-10-13
One way would be to route the output of the relational operator to two places: (1) a summing junction or an OR block, and (2) a memory block or unit delay block if your signals are discrete time. Then connect the output of the memory block to the other input of the OR block. I don't have Simulink right now or I'd create an example.

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