What Is Eclipse 4diac™?

Eclipse 4diac™ Provides an Open Source Infrastructure for
distributed Industrial Process Measurement and Control Systems
based on the IEC 61499 Standard.

design once use everywhere

Eclipse 4diac Virtual Community Meetings

Join us for a discussion on IEC 61499 and Eclipse 4diac. We welcome interested participants from all background, whether seasoned developer or interested newcomer. We will demonstrate new developments in Eclipse 4diac, outline our development roadmap, and provide enough room for questions and answers with the project team of Eclipse 4diac.

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Eclipse 4diac provides

IEC 61499 Engineering Tool 4diac IDE Real-time Capable IEC 61499 Execution Environment 4diac FORTE Easy to use Build Environment for 4diac FORTE 4diac FBE IEC 61499 Function Block Library 4diac LIB IEC 61499 example systems 4diac SYS

Latest News

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Eclipse 4diac Weekly #84

1 May, 2026

Update on what development happened across the Eclipse 4diac project in the week from April 24 to May 01, 2026.

TThis week’s Eclipse 4diac updates focus on improved validation, editor usability, and modularization in 4diac IDE, while 4diac FORTE strengthens security, determinism, and test coverage. Documentation has been enhanced with updated installation and communication guides.

Eclipse 4diac at OCX 2026: 18 Years of Eclipse RCP

30 April, 2026

Eclipse 4diac committer Michael Oberlehner presented how Eclipse 4diac grew from a research prototype into an industry-grade open-source toolchain for IEC 61499-based automation. The recording is now available, and an upcoming webinar will continue the topic with a focus on maintaining large IEC 61499 applications.

Eclipse 4diac Weekly #83

24 April, 2026

Update on what development happened across the Eclipse 4diac project in the week from April 17 to April 24, 2026.

This week’s Eclipse 4diac updates focus on advancing interpreter and replay debugging capabilities in 4diac IDE, while 4diac FORTE improves code quality, formatting utilities, and test readability. The documentation sees enhancements around IO and communication.