openloco - The open logic controller

openloco is an open source implementation of IEC 61131-3 languages - espacially STL. Take a look at the develop branch for recent features.

Goals:

• Multiplatform: Linux, macOS. FreeBSD
• Implement the full Standard (based on IEC:2003)
• Postscript for vector graphics output of graphical languages
• Just-In-Time compiling of STL and IL code.
• Compiles into LLVM 7 IL to support as many target platforms as possible
  • take a look at LLVM Targets
• Bindings for popular languages
  • Python, C++, C#, Java, ...
• Virtual PLC
  • Virtual Raspberry Pi
  • Virtual Arduino
  • Virtual PLC
• Configurations files for various systems to use it with conformance
  • Raspberry Pi
  • Arduino
• Package manager for programs and modules

Current Status

• Implement the standard
• use LLVM to
  • generate code
  • prepare JIT

Development

Tools used in this project

• C++ 17, Boost
• python
• cmake, ninja
• bison/flex antlr4 (we live in the 21th century)
• postscript
• LLVM
• sqlite