Instructions to compile on Windows

Create a new Visual Studio project with the library included

Download the latest version of libmodbus source code from Github https://github.com/stephane/libmodbus -> Code -> Download ZIP.

Once the archive is decompressed, launch a Windows terminal (cmd) in src/win32 directory and run cscript configure.js.

1. copy the file config.h from src/win32 to src.
2. create a new 'Console App' project under Visual Studio.
3. create a new directory called libmodbus inside your VS project (same level as the .vcxproj file).
4. copy all *.c and *.h from libmodbus src in the new libmodbus folder of your VS project.
5. copy modbus.rc in your VS project (same level as the .vcxproj file).
6. drag and drop libmodbus/*.c files (4) in Solution Explorer -> Source Files.
7. drag and drop libmodbus/*.h files (8) in Solution Explorer -> Header Files.
8. drag and drop modbus.rc file in Solution Explorer -> Resource Files.
9. check path is #include "modbus-version.h" in modbus.rc.
10. in the Property Pages of the project Configuration Properties -> C/C++ -> General -> Additional Include Directories, add libmodbus folder.
11. in the Property Pages of the project Configuration Properties -> Resources -> Additional Include Directories, add libmodbus folder.
12. in the Property Pages of the project Configuration Properties -> Linker -> Input, define ws2_32.lib.
13. if required, add _CRT_SECURE_NO_WARNINGS to C/C++ -> Preprocessor -> Preprocessor Definitions.

Create a libmodbus DLL

This directory contains the project file for Visual Studio to build modbus.dll and import library modbus.lib.

In the Windows terminal, run cscript configure.js to generate:

• config.h
• modbus-version.h are generated using configure.js.

To write...