How to access parameter attributes from data dictionary in Simulink block

Question

Anantrao 2025-4-14

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2176289-how-to-access-parameter-attributes-from-data-dictionary-in-simulink-block

评论： Fangjun Jiang 2025-4-17

Hello,

I am using a data dictionary for my model in Simulink to access parameters. I have defined the parmeter values and its other attributes such as min value and max value etc.

I want to call the min and max values in a simulink block e.g., as constant. I tried to call it as

Param.Min
Unable to resolve the name 'Param.Min'.

and

Param.Max

It shows the value but gives me error while running the model saying "dot value attribution is not supported."

Does anyone know how to access these attributes without redefining them? I am using following code to create my data dictionary.

myDictionaryObj = Simulink.data.dictionary.create('myDictionary.sldd');
myDictionaryObj = Simulink.data.dictionary.open('myDictionary2.sldd');
toolDataSectObj=getSection(myDictionaryObj,'Design Data');
ParameterFile = readtable('test_Param.xlsx');
for i = 1:height(ParameterFile)
    param = Simulink.Parameter;
    param.Value = ParameterFile.Value(i);
    param.Max = ParameterFile.Max(i);
    param.Min = ParameterFile.Min(i);
    param.Description = char(ParameterFile.Desc(i));
    param.Unit = char(ParameterFile.Unit(i));
    addEntry(toolDataSectObj, char(ParameterFile.Parameter(i)), param);
end  