Welcome to the TRNSYS Users Forum.
The forum is a place where people can interact and have discussions about different topics involving the use of the TRNSYS software package. Here you can post topics for discussion or questions on using TRNSYS and get advice from other users or TRNSYS experts. This forum is not intended for detailed technical support. Users should contact their distributor’s hotline for such assistance.
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Good morning,
@gehadrabee24 You can read about writing and compiling your own TRNSYS Type in the ProgrammersGuide.pdf, which is in the Documentation folder of your main TRNSYS17 directory. Trnsys17 is a bit out of date, so some of the references made to working with specific versions of specific compilers in that document may no longer be relevant, but the basic workflow and structure of a TRNSYS Type will be the same.
I assume you already have a Fortran compiler available, if you've accomplished running your code in Fortran independent of TRNSYS? If not, you can find some instructions for downloading the Microsoft Visual Studio and Intel Fortran compiler (both are free and are what we use for TRNSYS development work) in this post (see the second answer at the bottom): Floating point error debugging
