Hold signal value in after a trigger then resume with the rest of the signal

Question

Yan 2024-2-1

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https://ww2.mathworks.cn/matlabcentral/answers/2077391-hold-signal-value-in-after-a-trigger-then-resume-with-the-rest-of-the-signal

回答： Dimitri MANKOV 2024-2-2

Hello, I have a signal in simulink that looks like this: [1 2 3 4 5 6 7 8 9 10] I would like to run the simulation and when I hit a trigger action the signal would hold its current value, for example the output would be [1 2 3 4 5 5 5 5 5 5 5 5 5 5 5....] for an indefinite amount of time until I hit a trigger action that would continue logging the signal from where it stopped, for example [.... 5 5 5 5 5 5 6 7 8 9 10]. The examples on the web I have seen only hold the value of the signal but it does not continue where it left off but rather it continues the signal at a certain point ahead in time missing some portion of the signal. I would appreciate any help, Thank you!

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Answer 1

Dimitri MANKOV 2024-2-2

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https://ww2.mathworks.cn/matlabcentral/answers/2077391-hold-signal-value-in-after-a-trigger-then-resume-with-the-rest-of-the-signal#answer_1401626

Hi Yan,

What about a triggered subsystem containing your counter, like in the picture below? That counter would only be incremented if a trigger is received and would be held at its current value otherwise.