Programmatically to get member data type in In Bus Element Block

Hello everyone

i would like to get data type of member in the bus element

could anyone suggest me with an example code

[Balaji]

Thank you

[Adarsh]

Ok I will teach you

Answer 1

[Ganesh]

Hi @tan boonmee,

I have created and uploaded an example file with an "Out Bus Element Block" and shown how to access the "Data Type" in the following code:

open_system("example");
block = Simulink.findBlocksOfType(bdroot,'Outport');
portname = get_param(block(1),'PortName');
% Here, we have only one Outport, you might need to modify in order to specify 
% which block corresponds to Out Bus Element

param = get_param([bdroot '/' portname '.Signal.signal1'],'DataType')

param = 'int64'

close_system(bdroot)

Further, you can use the following documentation which illustrates the ability to set a parameter, and use the convention to get parameters too:

https://in.mathworks.com/help/simulink/slref/programmatically-create-in-bus-element-blocks.html

Hope this helps!

[tan boonmee]

thank you very much for your answer @Ganesh

i understood the concept of bus element parameter extraction

but it is not works for me.

the error it shown "Invalid Simulink object name"

[Ganesh]

Could you please share the model that you are using? Or a part of it should be good too.

[tan boonmee]

@Ganesh

thank you every much

but sorry i can not share it or a part of it .

[Ganesh]

That's okay.

The naming should go something like this -- model_name/portname.NestedData.var

Do ensure that this is being used. Also, try removing any spaces in your model name, port name or variable names.

[tan boonmee]

@Ganesh

thank you very much for your suggestion

[Balaji]

Thank you

[Adarsh]

Thanks for your confirmation

Answer 2

[Raghava S N]

Hi,

To programmatically obtain the data type attribute value of an In Bus Element, the function “get_param” should be used. The data type attribute value of an “In Bus Element” corresponds to the parameter ‘OutDataTypeStr’. This parameter should be passed to the “get_param” function, to programmatically obtain the data type of the bus element. For more information, refer to this documentation link of the function “get_param” - https://www.mathworks.com/help/simulink/slref/get_param.html.

get_param("<path_to_OutBus>/OutBus.NestedBus.Chirp", "OutDataTypeStr") 

Note: Modify the path so that it corresponds to the correct location of “OutBus” in your model.

Please refer to this documentation link for more details on programmatically accessing attributes of the In Bus Element - https://www.mathworks.com/help/simulink/slref/inbuselement.html#:~:text=elements%0Ano%20default-,Attributes,-To%20specify%20attributes

Hope this helps!

Raghava

[tan boonmee]

@Raghava S N

thank you very much for your answer

but i have try above method before , it is not work TT.

[Adarsh]

Ok thank you

Answer 3

[Adarsh]

Thanks you very much

Answer 4

[Adarsh]

Thanks you very much

Answer 5

[Adarsh]

Ok thank you