Simulink cannot propagate the variable-size mode from the output port

Question

Joyson Chacko 2020-10-9

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https://ww2.mathworks.cn/matlabcentral/answers/608951-simulink-cannot-propagate-the-variable-size-mode-from-the-output-port

回答： Rhea Chandy 2020-10-12

Hello everyone,

I'm gettinng a varaible sized mode ouput from a matlab function block which i give to postions(x,y,z) to a demux . but it expects a fixed mode input to the demux . can you please check my simulink blocks and function in the picture.

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Rhea Chandy 2020-10-12

Hi Joysen

I'm trying to recreate the issue on my end. I would appreciate it if you can share your simulink model so that I can get a closer look at the blocks.

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Answer 1

Rhea Chandy 2020-10-12

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https://ww2.mathworks.cn/matlabcentral/answers/608951-simulink-cannot-propagate-the-variable-size-mode-from-the-output-port#answer_511646

I understand that you want to use a variable-sized mode output from a function block as the input for a demux. One of the block characteristics of demux is that it does not currently support inputs from variable-size signals.