How to retrieve the datatype of the Bus from the "In Bus Element" block programmatically?

I want to retrieve the datatype of the Bus in the "In Bus Element" block programmatically using "get_param" from the following Simulink model "myModel.slx":

I am using the following command to retrieve the datatype of the Bus:

>> get_param('myModel/BusElementIn', 'OutDataTypeStr')
However, this returns the datatype of the element "a" of the Bus, not the datatype of the Bus itself.

Answer 1

[MathWorks Support Team]

In your model, "BusElementIn" refers to the individual input Bus element. To retrieve the datatype of the top level Bus port, please refer to the name of the Bus, "InBus":

>> get_param('myModel/InBus', 'OutDataTypeStr')

ans =

    'Bus: MyBus'

You can also retrieve the datatype of the element "a" of the Bus with the following:

>> get_param('myModel/InBus.a', 'OutDataTypeStr')

ans =

    'single'

By specifying a combination of the model component and the element label, you can change the value of an attribute of an existing top-level bus, nested bus, signal, or message at a bus element port. More information can be found in the documentation linked below:

https://www.mathworks.com/help/releases/R2022b/simulink/slref/programmatically-create-in-bus-element-blocks.html#ProgrammaticallyCreateBusElementPortsExample-5