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The comprehensive software suite for automation technology
Independent of device manufacturers
The basis:
- The "CODESYS Development System" programming tool, which implements the international IEC 61131-3 standard.
- The control software ("PLC runtime system" or "SoftPLC" or "virtual PLC") for different device platforms.
With CODESYS, you can freely select the optimum hardware for your automation application. Many classic automation providers have already implemented CODESYS. Or you can use standard device platforms on which you simply install or deploy the appropriate control software. With virtual controllers, you can even use powerful IT hardware for control and thus reduce hardware costs.
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CODESYS in Use
CODESYS in factory automation, mobile machinery, the energy industry, embedded devices, process and building automation.
Lissmac & Christ
Flexibility and independence with the WebVisu from CODESYS
With CODESYS, Lissmac was able to achieve maximum independence from device manufacturers. The development of a new user interface based on Lissmac CI was very simple. With WebVisu, diagnostic data can be retrieved globally and in real time via remote access.
Products used:
- CODESYS Engineering
- CODESYS Visualization
CODESYS Ecosystem – the heart of your automation solution
CODESYS Releases
Ladder
August 17, 2026
Latest version: 1.3.0.0
Highlights of this release:
- Customizable toolbox – add your own items and access frequently used blocks directly
- Improved parallel branches – insert markers on hover, clearer parallel insert commands, new Show Insert Positions toggle (Ctrl+Shift+M), plus several reliability fixes for closing branches
- EN/ENO compile fixes – MOVE and operator boxes (ADD, AND, MUL, OR, SEL, SUB, XOR) with EN but without ENO now compile as expected (relevant after LDFBD → LD2 conversion)
- Editor fixes – Unicode/CJK variable names no longer truncated; negated contacts colored correctly in online view; accurate error locations on NC contacts and transitions; connected inputs and outputs preserved on FB type change
- Stability – crash on block type change, Project Compare Allow Single exception, and cross-reference list freeze all resolved
- Hardened PLCopenXML import/export – FBs without EN/ENO pins, edge-detection modifiers, schema ordering issues
- File-Based Storage support for LD2 POUs (requires SP22 + File-Based Storage 1.0.0.0)
Safe Control Core
January 20, 2026
Latest version: 4.2.0.0
This update introduces FSoE Master support, improved diagnostics, and time provider redundancy functions.
Control SL Deploy Tool
August 18, 2026
Latest version: 4.22.0.0
Update to runtime SDK V3.5 SP22 Patch 3 - Increased robustness and bugfixes for Control SL Deploy Tool
Training courses
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