How do I scan the model for parameters read/write?

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MathWorks Support Team 2018-9-4

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https://ww2.mathworks.cn/matlabcentral/answers/447109-how-do-i-scan-the-model-for-parameters-read-write

回答： Jonas 2020-9-30

Is there a way to scan a model for any blocks that would read or write parameters to workspace. I need to clean-up a large model and I want to make sure no block are using or setting some values outside of want I know or want.

The same request also for file read or write.

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Answer 1

MathWorks Support Team 2020-9-30

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编辑：MathWorks Support Team 2020-9-30

在 MATLAB Online 中打开

To find blocks that can read of write to worksapce or file, you may use the find_system function:

https://www.mathworks.com/help/releases/R2020a/simulink/slref/find_system.html

For example,

>> find_system('mymodel','BlockType','ToFile')
>> find_system('mymodel','BlockType','ToWorkspace')
>> find_system('mymodel','BlockType','FromFile')
>> find_system('mymodel','BlockType','FromWorkspace')

In addition, to find all blocks that are using variables in the workspace, you can consider using the Simulink.findVars function:

https://www.mathworks.com/help/releases/R2020a/simulink/slref/simulink.findvars.html

For example,

>> Simulink.findVars('mymodel','SourceType','base workspace')

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Answer 2

Jonas 2020-9-30

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Another (and more user-friendly in my opinion) way to find certain blocks in your model, is by using the search function in the Model Explorer, and selecting the specific Block Type that you are looking for, such as a To Workspace block.

The search procedure will provide you with a list of all the blocks, including a link to directly navigate to the block in your model.