Can I define a cell class data using data dictionary in Simulink?

Dear All,

In Matlab environment, I see that we can define a cell class as below

AAAA_param = cell (1,4);

AAAA_param{1} = uint8(0);

AAAA_param{2} = uint8(1);

AAAA_param{3} = uint8([2 3]);

AAAA_param{4} = uint8(4);

So, How to define AAAA_param by using datadictionary in Simulink?

Thank so much for help!

Answer 1

[Shlok]

Hi HDT,

I understand that you want to define a cell class in Simulink by using Data Dictionary. To achieve the same, enter the following set of commands in the Command Window:

• Create a new Data Dictionary (eg: “myDictionary”) using the command:

>> Simulink.data.dictionary.create('myDictionary.sldd'); 

• Open the Data Dictionary to add entries:

>> myDictionary = Simulink.data.dictionary.open('myDictionary.sldd'); 

• Get the “Design Data” section of the dictionary:

>> dDataSectObj = getSection(myDictionary, 'Design Data'); 

• Define the cell array “AAAA_param” in the Data Dictionary:

>> AAAA_param = {uint8(0), uint8(1), uint8([2 3]), uint8(4)}; 
>> dDataSectObj.addEntry('AAAA_param', AAAA_param); 

• Save the changes to the Data Dictionary:

>> saveChanges(myDictionary); 

This will store the “AAAA_param” cell array in your Data Dictionary, making it accessible for use in your Simulink models.

To verify if “AAAA_param” is working correctly, link the Data Dictionary to your model (Model Properties > External Data > Data Dictionary) and use the values in a Constant block within your Simulink model.

To know more about Data Dictionary, refer to the following documentation link:

https://www.mathworks.com/help/releases/R2021a/simulink/ug/what-is-a-data-dictionary.html

Hope it helps.