How to set Simulink block parameter equal to the value of a signal?

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Davide Fasciani 2021-11-23

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评论： Harikrishnan Balachandran Nair 2021-12-7

I have a tcp client in the subsystem and I would like to set the ip and port value, according to the subsystem input signals. In this way, I would be able to configure my client directly through the input signals. It's something possible?

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Answer 1

Harikrishnan Balachandran Nair 2021-12-2

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编辑：Harikrishnan Balachandran Nair 2021-12-2

Hi Davide,

I understand that you are trying to change the block parameters of a certain block, during simulation, depending on the value of the input signal.

This is achievable using the 'set_param' function in matlab. 'set_param' function can be used to set the block parameter values programmatically. You can have a 'matlab function' block in your model ,prior to the subsytem , inside which you can execute the 'set_param' function to set the block parameter values according to your need.

However , it is not considered a best practice to change the block parameter values during runtime. You can refer to this article to get a better understanding on this : https://blogs.mathworks.com/simulink/2011/03/08/how-do-i-change-a-block-parameter-based-on-the-output-of-another-block/