how can I update a constant block within a Simulink simulation?

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Omar Velazquez
Omar Velazquez 2016-11-11
回答： Slava Shougaev 2020-8-26
I have created a Simulink model that takes variables (constants) from the Workspace. Within the Simulink model I have added a Matlab function that recalculates these constants after each iteration. However, after each iteration, instead of considering the newest value calculated for each variable, the model takes again the value I set from the Workspace in the beginning. Any idea on how I can update my values each step?
Thanks, Omar

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回答（2 个）

Slava Shougaev
Slava Shougaev 2020-8-26
You can also use the 'IC' block (Initial Conditions).
Hari Desanur
Hari Desanur 2016-11-15
The variables you are updating might be local to your MATLAB function.
Consider defining the variables in the MATLAB function as persistent or global . This might resolve the issue where the changes being made to the variables are not reset.

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