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 3.2.1 Maintenance Release!

9 July, 2026

The Eclipse 4diac team is pleased to announce the availability of 4diac IDE 3.2.1.

This release focuses on stability, usability, and reliability, delivering numerous improvements across the property sheets, Structured Text editor, validation, export process, and type refactoring.

Eclipse 4diac Weekly #92

26 June, 2026

Update on what development happened across the Eclipse 4diac project in the week from June 19 to June 26, 2026.

This week focused on refining the editing experience with improvements to type refactoring, package management, build performance, and numerous usability enhancements across 4diac IDE, while 4diac FORTE continued to simplify its management command infrastructure.

Eclipse 4diac Weekly #91

19 June, 2026

Update on what development happened across the Eclipse 4diac project in the week from June 12 to June 19, 2026.

This week’s work strengthens the foundations of 4diac IDE with improved refactoring workflows, enhanced bulk editing capabilities, and more robust library and type management.