To implement a counter in MATLAB Simulink that increments and resets to 0 after reaching 20 while retaining the accumulated values

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MAHENDRAN A
MAHENDRAN A 2024-11-24
评论： Ayush 2024-11-26
I want to create an increment counter; once it reaches 20, it should reset to 0, but the existing values should be present and added with the current values. How can I develop this logic in MATLAB Simulink ?

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Ayush
Ayush 2024-11-25
编辑：Ayush 2024-11-25
Hi Mahendran,
I understand you need to implement the logic of incrementing a counter and once it reaches a certain limit, it should reset to 0 but the sum achieved should be preserved.
You can use several blocks for achieving this logic in MATLAB Simulink R2022b like:
  1. “Constant block”: To maintain the value of counter
  2. For reading more about this block, refer here: https://www.mathworks.com/help/releases/R2022b/simulink/slref/constant.html
  3. Unit delay block: It helps in incrementing the values of counter. For reading more about this, refer here: https://www.mathworks.com/help/releases/R2022b/simulink/slref/unitdelay.html
  4. Memory block: It helps to preserve the sum achieved till now. For reading more about this block, refer here: https://www.mathworks.com/help/releases/R2022b/matlab/ref/memory.html
  5. Switch block: It helps to reset the value once the counter reaches 20. For reading more about this block, refer here: https://www.mathworks.com/help/releases/R2022b/simulink/slref/switch.html
  6. Relational operator block: It helps to check whether the counter has reached value 20 or not. For reading more about this block, refer here: https://www.mathworks.com/help/releases/R2022b/simulink/slref/relationaloperator.html
I have attached the Simulink model implementing the above logic for your reference with this answer.
Hope it helps!
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MAHENDRAN A
MAHENDRAN A 2024-11-25
But yeah it workss, we need add a divide with the final value, to get accurated output, but i dont why its getting multiplied into 10 anf giving, lets say, the value which I'm expecting is 61, but npw with this logic, its coming 610, so i just divide by 10 at output signal.
If you know, how its multiplying the value 10, please let me know.
Ayush
Ayush 2024-11-26
The above model is implementing the following logic:
1 + 2 + 3 + 4 + .... + 20 (lets say this sum is equal to x)
now, let's say number of iterations are y.
the model gives the following output: x*y
Hope this is the expected behaviour and if not, kindly give an example to depict by taking a small input and depicting the expected output.
Hope it helps!

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