up or down counting based on input signal value

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Anushka Shivalli 2022-7-8

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https://ww2.mathworks.cn/matlabcentral/answers/1755950-up-or-down-counting-based-on-input-signal-value

编辑： Jon 2022-7-11

I have to design a counter that counts up when the input signal value is 1 and the same counter should count down when the same input signal value is 3.

How do I do this in simulink??

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Jon 2022-7-8

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https://ww2.mathworks.cn/matlabcentral/answers/1755950-up-or-down-counting-based-on-input-signal-value#answer_1003020

counterquest.slx

This is one approach, the counter will increment at each sample time of the delay block (z^-1). You can set that parameter in the delay block dialog box

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Anushka Shivalli 2022-7-11

counterDoubt.png

Request you to refer the attached image for the expected counter algorithm.

Jon 2022-7-11

编辑：Jon 2022-7-11

In your problem description you said you wanted the counter to count down when the input is 3 and countup when the input is 1, this is what the above model does. You also did not say anything about the counter resetting, which seems to now be indicated in your hand sketch. Please try to provide a more complete specification for what, exactly, you want the model to do. Maybe a little context for the application would be helpful too.

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