Codesys 2.3.9 Download ((link)) -

Avoid installing to deeply nested folders. The default C:\Program Files (x86)\Common Files\CAA-Targets is usually the safest bet for target files.

As a last resort, you can use the Internet Archive’s Wayback Machine to retrieve old versions of the CODESYS website. For example, the URL http://www.codesys.com/download from around 2010–2012 often still has downloadable .exe files. The official filename for the V2.3.9 installer is usually something like CoDeSys_v23916.exe (the last two digits indicate the build number). codesys 2.3.9 download

Visit the official CODESYS website or an authorized distributor and navigate to the download section. Search for CODESYS 2.3.9 and select the correct version (32-bit or 64-bit) for your system. Click on the download link to initiate the download process. Avoid installing to deeply nested folders

The CODESYS Forum has an active “CODESYS V2.3” section where many engineers share tips for keeping old machines running. For example, the URL http://www

You can download CODESYS V2.3 (specifically version ) through several official manufacturer channels, as the older V2.3 branch is often bundled with specific hardware support. Official Download Sources Manufacturer Portals

Despite its age, this specific version of the IEC 61131-3 programming environment is still actively used in the automation sector.