How to set multiple ports for a step input block

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Teo Samuel 2012-3-8

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https://ww2.mathworks.cn/matlabcentral/answers/31663-how-to-set-multiple-ports-for-a-step-input-block

Hi all,

Is it possible to set multiple ports for a step input block? I am tying to run two models with PID controller in simulink and I need two different step signals to be used as the set input for both models.

It is troublesome by using two step signal blocks as I need to set the final value of the signals seperately. So how can I set the final value of the two signal in one identical parameter setting GUI? Is it possible?

Please advice. Thank you very much.

Regards

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Answer 1

Jarrod Rivituso 2012-3-9

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I believe you can use a single Step block, and then for the various parameters (such as the Final Value parameter) you can set a vector, such as

[-1 1]

This will cause the Step block to output a vector signal, and you can demux the signal to get each element (or use the Selector block).

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Teo Samuel 2012-3-9

Great answer, thank you so much...By the way, do you know is there any way to reset the value in the step signal block if a certain condition is met in the simulink? Thank you very much.

Regards

Jarrod Rivituso 2012-3-12