MATLAB: Signal Builder and Importing Data from Excel

signal builderSimscape

Hi all,

Using the attached simscape circuit, I am trying to use the signal builder to import current values generated from excel. When doing so, I am met with the message telling me that my excel file is not compatible. I was wondering if anyone could give me some help with this?

Thanks,

Fraser

Best Answer

Hi,

For the excel sheet to comply with Signal builder while importing, it should not contain non-numeric values. So, try not using non-numeric values in your excel sheet.

Following is the link for a blog, which also covers importing excel sheet into Signal Builder:

https://blogs.mathworks.com/simulink/2011/01/12/creating-test-cases-using-signal-builder/

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MATLAB: Does the Signal Builder fill in zeros if the signal values are left blank in the Excel sheet

To import data to signal builder block from excel, the excel file needs to conform to certain format:

<http://blogs.mathworks.com/simulink/2011/01/12/creating-test-cases-using-signal-builder>

The signal builder does not fill in zeros if the values are left blank in the Excel sheet. To be able to import data from excel, you will have to manually set the signals to zero and ensure that each test harness has an equal number of signals.

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Using xlsread

num = xlsread(filename,sheet) %Sheet can be a number or an existing sheet name

You can use also xlsfinfo to obtain the sheet names

[status,sheets] = xlsfinfo(filename)

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