I am trying to run a model in SImulink Matlab that uses both Matlab based S-function block (a .mexw32 file) and a C code based S-function block (a .c file). When I run the model, I get the error below:
Error in S-function 'Transformer/Practical characteristics to biochemical composition Waste1': S-Function 'GeneralADM1Transformer' does not exist
Component:Simulink | Category:Model error
Error in S-function 'Transformer/Practical characteristics to biochemical composition Waste2 ': S-Function 'GeneralADM1Transformer' does not exist
Component:Simulink | Category:Model error
I don't know why it keeps saying "It does not exist". The file is there, and it does exist. Someone should please help me out here.
The error message
The files arranged in a folder
I downloaded and installed MATLAB support for MinGW-w64 C/C++ Compiler to compile the C code so that it can be called from MATLAB using MEX. I'm still getting the same error despite doing this. I don't know what else to do.
Related
I’m struggling to understand how to call a Matlab function from Labview. I’m using Labview 2020 SP1 and I’ve created the following m file (saved to my desktop):
function A = test()
A{1,1}=ones(1,3);
A{1,2}=ones(1,4);
end
In Labview I’ve added a Matlab script node and imported the function. However when I click run I get the following error:
Error occurred while executing script. Error message from server: ??? Error: Function definition not supported in this context.
Functions can only be created as local or nested functions in code files.
I was expecting the function to be able to run but do nothing as I’ve not added any outputs to the Matlab script node.
Can anyone point me to where I’m going wrong? I’ve looked through the Labview examples but they only seem to demonstrate calling a Matlab script not a function.
Firstly the function would need to be in MATLAB's path (which typically wouldn't include the current user's desktop). MATLAB's path is a list of file locations that MATLAB will search in to find a function definition.
You can view/edit the current path by typing pathtool into MATLAB's interactive command window which will bring up a GUI.
Then your MATLAB script node should be able to call the function as below - note I have added an output just to check the result of the call.
This image is a "LabVIEW Snippet" so you should be able to drag and drop it directly into the block diagram of a new VI and then save and run the VI.
please help with this problem
while i am trying to deploy a model into Arduino mega from my 2013a 32bit matlab i had this error.
( The corresponding 'Model name.tlc' file for the MATLAB S-function 'Model name' in block 'block name' must be located in the current working directory, ...)
i have looked in many websites and forums for solution but i couldn't find, maybe because i am not familiar with matlab much. but i guess the problem is with S-function. i noticed that it is easy to get tlc file if i use s-function builder. but the current model i am trying to deploy is {M-S-Function: User-definable block written using the MATLAB S-Function API...}
what shall i do?
after i used newer version of matlab and newer version of the support package i was able to generate automatically all the files including tlc file.
I have created a simple Simulink library because I am learning about masks. The library is saved into Documents folder, which is in path of MATLAB. To test my library, I've created a model and I've inserted my block from my library. When I want to change the value of a parameter in the mask I receive this error screenshot of message
Is there any configuration to do?
Thank you so much
i need to open an existing simulink model from my Matlab GUI. I am not into Simulink at all and i just have to make it work somehow. To open the model i use the command
open_system('filepath_to_model')
Now an error occurs:
Warning: Physical modeling domain definition file psatdomain.m not found. You will not be able simulate this model. Please close
your model, then add the domain definition file to the MATLAB path and re-open your model.
What does this error mean? i added psatdomain.m to the directory of the model but the error remains the same.
% PSATDOMAIN defines the domain for the PSAT-Simulink library
I would be glad for your help so that i can open an existing Simulink model and run it from my Matlab GUI.
Thank you very much!!
Best regards, John
I am trying to use the Communications Toolbox in Matlab. In this toolbox there are a number of built in Systems Objects for example
1) comm.PSKModulator
I want to examine the .m file and see how these system objects are implemented. So I wrote down the command
open comm.PSMModulator
However, that doesnt help. Does anyone know why it doesn't work or maybe one cant access such code?
Update
When I write down which comm.PSKModulator I receive the following
/Applications/MATLAB_R2014a.app/toolbox/comm/comm/+comm/PSKModulator.p % comm.PSKModulator constructor
and where I write open comm.PSKModulator I get
Error using open (line 146)
File associated with
'/Applications/MATLAB_R2014a.app/toolbox/comm/comm/+comm/PSKModulator.p' not found.
Thanks
Some System objects may be implemented in C++ and does not have much to show in MATLAB code which might be the reason this is p-coded. You need to check the corresponding Simulink block documentation for description of the algorithm used. You can find documentation for M-PSK Modulator Baseband at http://www.mathworks.com/help/comm/ref/mpskmodulatorbaseband.html which has more description about the algorithm implemented.