How to input (A/s) as source input signal in Simulink?

Hello, everyone. I am implementing a closed-loop system, but I encounter a problem.

The system structure

The output waveform

In the book, it mentions the R(s) = A/s

I know if I use step function, R(s) is euqal to 1/s

I have read the book carefully, but it doesn't mention A/s that much.

So right now I am still confusing about this

Could someone give me a hint or help with this question?

The current process in my simulink

Thank you for your patience.

Answer 1

[Sam Chak]

Hi @CHUN-KUAN CHIH

The symbol 'A' probably stands for a reference amount of the setpoint to be entered. You insert a Gain Block like this:

[Paul]

Or set the "Final value" parameter of the Step block