Use of Variables in Simulink Matlab Function

2 次查看(过去 30 天)
Hi,
I'd like run a complex code in a Matlab Function Block in Simulink. The initialization of some variables via another matlab script works fine, so some objects (e.g. the double h =1 ) the are loaded to the Model Workspace. (they appear in Model Explorer)
When running the Simulink Model including the Matlab Function Block, h is unknown.
function y = fcn(u)
y = u *h;
Error: Undefined function or variable 'h'. Function 'MATLAB Function1' (#66.156.157), line 6, column 8: "h"
How to read and write Variables from Model Workspace in the Matlab Function Block?
Thanks!

回答(1 个)

Fangjun Jiang
Fangjun Jiang 2022-1-10
In MATLAB Function block Editor, click "Data", define "h" as a parameter.
  7 个评论
Fangjun Jiang
Fangjun Jiang 2022-1-14
If there is no constraint to add input and output to the MATLAB Function block to read and write the value, it certainly makes it easier.
I believe it can store variable size data. Just need to set the proper property values.

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