If your PLC isn't in the list when starting a new project, you haven't installed the vendor-specific target files.
: Offers CODESYS Version 2.3.9.35 (SP9 Patch 35) for programming BL20/BL67 gateways. codesys 2.3.9 download
If you are using a specific brand of PLC, always check the manufacturer’s "Support" or "Downloads" section first. Using the "generic" version from the CODESYS store might require you to manually install Target Files later. System Requirements If your PLC isn't in the list when
In the world of industrial automation, newer isn't always better—sometimes, it's just different. While CODESYS V3 has been the "current" version for years, remains a cornerstone of the industry. Whether you are maintaining a legacy system, working with specific hardware like older WAGO or Eaton PLCs, or just need a lightweight, reliable IDE, finding a safe download for CODESYS 2.3.9 is the first step. Using the "generic" version from the CODESYS store
User experiences highlight several quirks regarding stability and versioning:
CODESYS 3 (e.g., 3.5.20) offers: