User experiences highlight several quirks regarding stability and versioning:
Unlike modern software, the CODESYS Group does not publicly host V2.3.9 on their main website anymore (they promote V3.5). However, several exist: codesys 2.3.9 download
| Feature | CODESYS 2.3.9 | CODESYS V3.5+ | |---------|---------------|----------------| | | ~2008 | 2013–present | | IEC languages | All (IL, ST, FBD, LD, SFC, CFC) | All + OOP extensions | | 64-bit support | No | Yes | | Modern hardware | Limited (legacy only) | All new PLCs | | Git integration | No | Yes | | Security | No encryption | TLS, user management | | Best for | Maintain old machines | New development | codesys 2.3.9 download
Some of the key features of Codesys 2.3.9 include: codesys 2.3.9 download
| Manufacturer | Model Example | Download Section Name | |--------------|---------------|------------------------| | | 750-841, 750-881 | “WAGO-I/O-PRO CAA” (based on CODESYS 2.3.9) | | Beckhoff | CX1020, BX9000 | “TwinCAT 2 PLC Control” (identical to CODESYS 2.3.9) | | Festo | FEC, CECX | “Festo Soft PLC – CODESYS V2.3” | | Eaton | XC-CPU201 | “Eaton CODESYS 2.3 Runtime” | | Turck | BL20, BL67 | “Turck CODESYS 2.3 Programmer” |
Before downloading CODESYS 2.3.9, ensure your system meets the minimum requirements: