CODESYS 2.3.9 was designed for the Windows XP and Windows 7 eras. Deploying this software on modern operating systems (Windows 10/11) presents specific challenges.
Components Installed:
The official CODESYS forum (forge.codesys.com) has sticky posts with legacy download links. You must create a free account to view attachments.
If you are searching for CODESYS 2.3.9, you are likely maintaining or servicing an older industrial automation system. While the modern CODESYS (version 3.x) is the current standard, version 2.3.9 remains a critical tool for many legacy PLCs from manufacturers like Wago, Beckhoff (TwinCAT 2), Festo, and others.
Important Note: CODESYS 2.3.9 is legacy software (released around 2010-2013). It is not compatible with Windows 10/11 64-bit by default and is no longer actively developed. Use it only for maintaining existing equipment, not for new projects.
What it is
Why you might want it
Where to get it (actionable)
Practical steps to download and install
Compatibility & caveats
If you need
Codesys 2.3.9 Download: A Comprehensive Guide for Industrial Automation Professionals
In the realm of industrial automation, CODESYS is a well-known and widely used software framework that enables the creation of sophisticated control systems. Among its various versions, CODESYS 2.3.9 remains a popular choice for many developers and engineers. This article aims to provide a detailed overview of CODESYS 2.3.9, its features, benefits, and, most importantly, a step-by-step guide on how to download and install it.
What is CODESYS?
CODESYS (Controller Development System) is a software framework used for developing control systems, particularly in the field of industrial automation. It provides a comprehensive set of tools and libraries for creating control applications, including programming, testing, and debugging. CODESYS supports various programming languages, such as IEC 61131-3, C, and C++, making it a versatile platform for developing control systems.
What is CODESYS 2.3.9?
CODESYS 2.3.9 is a specific version of the CODESYS software framework. Released in the past, it has gained significant traction among industrial automation professionals due to its stability, performance, and feature-rich interface. Although newer versions of CODESYS have been released, 2.3.9 remains a popular choice for various reasons, including compatibility with older systems and specific hardware.
Key Features of CODESYS 2.3.9
CODESYS 2.3.9 offers a range of features that make it a robust and efficient control system development platform. Some of the notable features include:
Benefits of Using CODESYS 2.3.9
There are several benefits to using CODESYS 2.3.9 for industrial automation projects:
Downloading and Installing CODESYS 2.3.9
To download and install CODESYS 2.3.9, follow these steps:
Step 1: Find a Reliable Source
First, you need to find a reliable source for downloading CODESYS 2.3.9. The official CODESYS website or authorized distributors are recommended sources. Be cautious when downloading software from third-party websites, as they may not provide the genuine product or may bundle it with malware.
Step 2: Check System Requirements
Before downloading CODESYS 2.3.9, ensure your system meets the minimum requirements:
Step 3: Download CODESYS 2.3.9
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.
Step 4: Install CODESYS 2.3.9
Once the download is complete, run the installer and follow the on-screen instructions:
Step 5: Activate CODESYS 2.3.9
After installation, you may need to activate CODESYS 2.3.9 using a license key. This key is usually provided by the software vendor or an authorized distributor.
Conclusion
CODESYS 2.3.9 remains a popular choice among industrial automation professionals due to its stability, performance, and feature-rich interface. By following the steps outlined in this article, you can download and install CODESYS 2.3.9 on your system. Remember to always use a reliable source and follow proper installation procedures to ensure a successful installation. If you encounter any issues or require assistance, consult the official CODESYS documentation or contact an authorized support provider.
Additional Resources
For more information on CODESYS 2.3.9, please refer to the following resources:
By leveraging CODESYS 2.3.9 and its comprehensive set of tools and features, industrial automation professionals can create sophisticated control systems that meet the demands of modern industrial environments.
To download CODESYS 2.3.9, you should head to the official CODESYS Store, where the legacy development system is available for free download. Essential Download & Setup Steps codesys 2.3.9 download
Create an Account: You will need to sign in or register on the CODESYS Store to gain access to the download link.
Search for Version 2.3: Since CODESYS V3 is the current standard, use the store's search bar to specifically look for "CODESYS V2.3." It is often listed as a legacy engineering tool.
Check Compatibility: CODESYS V2.3 is a 32-bit application. While it runs on modern Windows systems, you may need to run it in compatibility mode depending on your specific OS version.
Target Files: Unlike V3, version 2.3 often requires specific "Target Files" provided by your hardware manufacturer (like WAGO or Schneider Electric) to communicate with their PLCs. Why Use CODESYS 2.3.9?
Legacy Support: It remains the primary tool for maintaining older automation systems and machines that were built before the transition to V3.
Free for Development: The IDE itself has no license fee, making it accessible for testing, library creation, and project templates.
Conversion Path: If you eventually want to modernize, CODESYS V3 includes a V2.3 Project Converter to help migrate your code.
For a visual walkthrough of the installation process, the RealPars guide on downloading CODESYS is a highly recommended community resource.
Are you downloading this for a specific PLC brand, or are you looking to use the internal SoftPLC for learning? CODESYS Development System – your programming tool
Downloading and setting up CODESYS 2.3.9 (often listed as version 2.3.9.x) differs from modern software because it is a legacy development environment typically provided by hardware manufacturers rather than a single central store. 1. Where to Download CODESYS 2.3.9
Because version 2.3 is an older environment, you should download the version specific to your hardware brand to ensure the correct Target Files (device descriptions) and libraries are included. Brand-Specific Portals:
WAGO: Often provided as "WAGO I/O PRO". If you cannot find it on the public WAGO Download Center, users often have to request a direct link from the WAGO Automation Community.
Eaton: Available as XSoft-CoDeSys-2. Versions like 2.3.9 SP3 or SP7 are standard for their XV and XC series PLCs.
Turck: Offers CODESYS Version 2.3.9.35 specifically for their BL20/BL67 gateways. ABB: Used for AC500 PLCs.
General CODESYS Store: While the CODESYS Store primarily focuses on version 3.5, you can sometimes find legacy setup files under the "Engineering" or "Archive" sections. 2. Installation Steps
System Requirements: CODESYS 2.3 is a legacy Windows application. While it was designed for Windows XP/7, it can often run on Windows 10/11 using Compatibility Mode (Right-click .exe > Properties > Compatibility).
Disable Antivirus: It is highly recommended to temporarily disable antivirus software during installation to prevent blocks on communication drivers.
Run Installer: Execute the .exe file. If using a branded version (like WAGO or Eaton), the installer will typically include the base CODESYS IDE plus that manufacturer’s specific device targets.
Install Target Files: If your PLC does not appear in the "Target Settings" after installation, use the InstallTarget utility (found in the CODESYS installation folder) to manually add .trg files provided by your manufacturer. 3. Post-Installation Checklist CODESYS 2
The CODESYS 2.3.9 download is primarily available as the legacy version of the CODESYS Development System, widely used for programming PLCs from manufacturers like WAGO and Festo. While newer versions (V3.5+) are now standard, the V2.3.9 series remains critical for maintaining older industrial hardware. Download Options
Official Source: The CODESYS Store provides free access to the development environment, though you may need to search the archive section for specific older versions like 2.3.9.
Manufacturer Portals: Since V2.3 is often hardware-specific, it is frequently downloaded via manufacturer support pages like WAGO or Eaton (XSoft). "Interesting Review" & Community Insights
User experiences highlight several quirks regarding stability and versioning:
The "Library Overwrite" Trap: A critical community "review" warning emphasizes caution when upgrading within the 2.3.9 series. Because CODESYS V2.3 libraries often keep the same names across revisions, an update can overwrite stable old libraries with newer versions that might contain bugs, potentially breaking existing POUs (Program Organization Units).
Access Rights Shifting: Users have noted that between versions like 2.3.7 and 2.3.9.4, "Read Only" access rights for visualizations became more restrictive, sometimes locking technicians out of interactive buttons they could previously use.
Multi-Developer Synchronization: A common complaint involves "login without download" issues when multiple developers work on the same project stored on a server. The IDE's reliance on timestamps can trigger a mandatory re-download even if no code changed, simply because the project was saved on a different local machine.
Stability Warning: Long-time users (8+ years) have reported rare but catastrophic crashes in 2.3.9 where project files became unreadable, making external backups mandatory. Key Specifications for V2.3 XSoft-Codesys 2.3.9 Crashed, I can't load my project now
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
: Since V2.3 is often hardware-specific, it is best retrieved from vendor sites: CODESYS Version 2.3.9.35 for their programmable gateways. : Provides a dedicated CODESYS 2.3 software package for ecomatmobile controllers. WAGO/Other Vendors
: Check the support section of your specific PLC manufacturer, as they typically provide a customized version with their specific targets. CODESYS Store : While the CODESYS Store primarily focuses on
, it remains the primary official hub for all development system downloads. TURCK India Automation Pvt. Ltd. Solid Principles & Modern Development The "solid report" in your query likely refers to applying SOLID principles within the IEC 61131-3 environment. Object-Oriented Design
: While V2.3 has limited object-oriented capabilities compared to V3.5, developers still advocate for SOLID (Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, Dependency Inversion) to improve PLC code maintainability. Expert Resources : Authors like Stefan Henneken have published papers specifically on using SOLID principles with IEC 61131-3 to modernize industrial programming. System Requirements for V2.3.9.x : Windows XP, 7 (SP1+), 8, and 10 (32/64 bit).
: Minimum 466 MHz processor, 128 MB RAM, and 300 MB hard drive space.
: If you are starting a new project, CODESYS V3.5 is the current standard and offers much better support for modern programming practices and security. CODESYS Store target file (H-file) for a certain PLC model to use with version 2.3.9? CODESYS V2 - ОВЕН
Because 2.3.9 was often embedded, your PLC manufacturer (e.g., WAGO, Turck, IFM) likely included a branded copy on the original Software CD/DVD that shipped with the controller. These versions are locked to that specific hardware runtime but function identically to the standard IDE.
Because CODESYS is a "white-label" product sold to hardware manufacturers, the most reliable source for CODESYS 2.3.9 is often the specific hardware vendor's website.
Security Advisory: Avoid downloading CODESYS 2.3.9 from unverified third-party aggregators (general software download sites). Executable files from these sources may be unpatched or contain malware. Always prioritize vendor-hosted files or the official CODEYS Store archive.
The CODESYS Group maintains an FTP/Archive for registered developers. You typically need a maintenance contract or a free registration to access the "Download Archives" section where 2.3.9 is stored as a .exe installer. Components Installed:
| Requirement | Details | |-------------|---------| | Operating System | Windows XP, Vista, 7 (32-bit). Windows 10/11 64-bit requires a virtual machine (e.g., VirtualBox or VMware) running Windows 7 32-bit. | | Target PLCs | Any CODESYS V2.3 runtime (e.g., Wago 750-841, Beckhoff BC/BX series, older Eaton XC). | | Programming Languages | IL, ST, FBD, LD, SFC (CFC is optional). |