While Version 2.3 is an older legacy platform, it remains vital for maintaining existing industrial machinery and "brownfield" automation projects. Many engineers still prefer its lightweight feel compared to the modern, resource-heavy Version 3.5. 📥 Where to Find the Download
If you are starting a new project or have the budget, migrate to CODESYS 3.x. When you do download 2.3.9, always use the official CODESYS archive and run it inside a Windows 7 32-bit virtual machine for stability and security. codesys 2.3.9 download
Installing CODESYS 2.3.9 on a modern 64-bit OS requires patience: While Version 2
If the UI looks scaled incorrectly, right-click the CODESYS icon > Properties > Compatibility > Change high DPI settings. Conclusion When you do download 2
Check out our next post on configuring the communication gateway for legacy controllers.