Simulink Error/Warning: "Signal with under-specified data types" in Motor Control Blockset blocks
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When updating my model I encounter "Signal with under-specified data types" with Motor Control Blockset blocks i.e. Position generator, Sine-cosine Lookup, Park Transform.
Specifying the data types of all input and output signals as suggested in https://de.mathworks.com/matlabcentral/answers/92822-why-do-i-get-a-warning-about-under-specified-data-types-in-my-simulink-model#answer_102172 and depicted below does not solve the warning/error for any of the blocks.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1580956/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1580961/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1580966/image.png)
What can I do to resolve these warnings without deactivating all under-specified data type warnings?
Thanks for your help!
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Accepted Answer
Fangjun Jiang
on 2 Jan 2024
set the "Output data type" of that "Data Type Conversion" block to be 'single', instead of leaving it as default.
2 Comments
Fangjun Jiang
on 3 Jan 2024
Modify your local library file and then update/synchronize with your repository. The solution has nothing to do with source control.
Selecting the "back propagation" might be better suited for a library component as it might be used for different data types.
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