How to create simulink Data dictionary by using a command in a matlab script ?

I have a Simulink Model block with some entries and outputs.Each Input and output has its Data types.

Apart from this i have an array where in one column i have all the input and output names and on one side i have its corresponding data types (all stored in an array).

From only these data how do i create a simulink data dictionary . How do i choose only this section from the array and create a data dictionary out of it .

For example : 'MyDataDictionary.sldd' containing a column named 'Names' and the next column named 'DataTypes' and all these saved in an sldd format 5all inside amatlab script) .

I want it like an automated script without going into simulink model explorer and then getting the data dictionary.

Any help will be appreciated .

Answer 1

[Rajanya]

Hi @sachin narain,

You can leverage MATLAB's APIs for creating and adding entries to a data dictionary programmatically. The functions and their usages are given in detail in the documentation link - https://www.mathworks.com/help/simulink/ug/store-data-in-dictionary-programmatically.html

Here's an example script I created for demonstration purposes:

names = {'Input1', 'Input2', 'Output1', 'Output2'};  
dataTypes = {'double', 'int32', 'single', 'boolean'}; 
dataTable = table(names', dataTypes', 'VariableNames', {'Names', 'DataTypes'});
% a table to store the data in mentioned format - Names and Data Types
dataDictionaryName = 'MyDataDictionary.sldd';
Simulink.data.dictionary.create(dataDictionaryName); 
dictObj = Simulink.data.dictionary.open(dataDictionaryName);
sectionObj = getSection(dictObj, 'Design Data');
for i = 1:height(dataTable) % Loop to iterate over the table and add entries to the design data
    entryName = dataTable.Names{i};
    entryDataType = dataTable.DataTypes{i};
    parameter = Simulink.Parameter;
    parameter.DataType = entryDataType;
    addEntry(sectionObj, entryName, parameter);
end
saveChanges(dictObj);

On executing the script, a data dictionary gets created as shown:

I hope this answers your question. Thanks!