Python code link to simulink issue

Hi does anyone know why the blocks show color after running the simulation? and how to set this? I want to link this simulink to my python code. Any recommendations and reply will be appreciate.

[Umar]

Hi Yeow,

To answer your questions, please see my comments below.

why the blocks show color after running the simulation? and how to set this?

These colors can signify different meanings such as:

Gray: Indicates an inactive or disabled block. Blue: Represents a block that is actively running or being simulated. Red: Indicates an error or warning state in the block. Green: Typically signifies a successfully executed block

Now, bear in mind that annotations themselves do not directly change block colors, they can provide additional context for understanding the block's purpose or behavior.To add an annotation to a block in Simulink, you can:

% Example: Adding an annotation to a block

annotation('textbox',[0.2 0.2 0.1 0.1],'String','Custom Annotation','Color','blue');

Question#2, I want to link this simulink to my python code, Any recommendations and reply

Try utilizing the MATLAB Engine API for Python, enabling communication between MATLAB and Python environments. This integration allows you to exchange data, call MATLAB functions from Python, and vice versa, facilitating a seamless connection between your Simulink model and Python code. For more information about it, please refer to

https://www.mathworks.com/help/matlab/matlab_external/install-the-matlab-engine-for-python.html

[Yeow Yu Leong]

Hi Umar

Thank you for your clear explanation and your advice, I will look into the link provided.

[Sam Chak]

Hi @Yeow Yu Leong

From the signal flow and signal signs, the system is clearly unstable (to those who understand mass-spring-damper).

Since and are zero, the differential equations can be interpreted as:

, ... Eq. (1)

. ... Eq. (2)

If and are assigned, then differentiating Eq. (1) gives

and substituting Eq. (2) gives

Rearranging that to the standard Newton's form: with acceleration on left-hand side and force on right-hand side gives

If you solve the 2nd-order differential equation analytically, you'll get

[Sam Chak]

Those values are found by solving the quadratic equation:

[Umar]

Hi @Sam Chak,

I do appreciate the teamwork to resolve this problem. You seem like a great guy. Happy 4th of July to you and your family. Also, making contributions by making difference in people lives which is the same goal I have.

[Yeow Yu Leong]

Greeting @Sam Chak

I appreciate and thank you for your very detail explanation. I will modify my simulink again.

[Umar]

Glad to help out, Yeow, please let us know if you need further assistance.