Hi

I can tell you how to export a TRNSYS TYPE into C++ or Fortran. I tested the following in TRNSYS 17.

In the Simulation Studio, open your project (tpf file). Then, perform a right-click on the icon of the TYPE you want to export and select Proforma... from the context menu. The Proforma (tmf file) opens. Click on File in the menu bar of the Simulation Studio, then click on Export as... and select C++ or Fortran. A Save As dialog opens asking you where you want to save the C++ or Fortran file. Save it in any folder you like. TRNSYS will attempt to open the saved file in an IDE (if you have any) and you can continue modifying the code from there. If this fails, just open your preferred IDE or text editor manually. Studying the exported code of the TYPE is also an excellent way to learn how to write TYPEs yourself.

Unfortunately, I have never tried to load a TRNSYS TYPE exported as C++ or Fortran code into Simulink, sorry. You might need to compile the C++/Fortran source code into a dll first, by using a suitable C++/Fortran compiler, and then write a C S function to call into your dll.

Hope this helps. Best regards

Article Coupling of TRNSYS with Simulink–a method to automatically e...

Dear Skaltsis and Ulrich,

I think the "export as ..." function from the tmf file does only build a new TRNSYS code skeleton with the defined inputs, outputs, parameters of the type, but it doesn't export the source code itself. You find the source code of various Types in the "\TRNSYS Directory\SourceCode\Types" Folder.

Beside Type 155, you can also use BCVTB (www.simulationresearch.lbl.gov/bcvtb/FrontPage) for co-simulation (if co-simulation is a possible option beside model export). You will find more information on co-simulation in these articles:

Conference Paper A Comparison of Co-Simulation Interfaces between Trnsys and ...

Chapter Co-simulation Between Trnsys and Simulink Based on Type155

If you use Type 155, parameter 4 "Calling mode" is an important parameter. Changing the parameter to non-iterative (Calling mode 10) sometimes helps to handle simulation problems and avoid TRNSYS crashes.

Hope this helps,

Best Regards,

Danny

Thank you very much for your answers. I will let you know how it goes.