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 #108

16 October, 2026

Update on what development happened across the Eclipse 4diac project in the week from October 09 to October 16, 2026.

This week brings improvements to the AsciiDoc Documentation Editor, additional validation for circular struct references, and more robust library and editor handling. 4diac IDE also moves to Eclipse 2026-12, while 4diac FORTE adds support for nested delegating connections.

GSoC 2026 Final Report: Improving the ECC Editor

14 October, 2026

Google Summer of Code 2026 final report by Vikash Kumar Sinha, describing improvements to the ECC editor in 4diac IDE, including state placement, transition routing, connection anchors, breakpoint support, and bendpoint preservation during state movement.

Eclipse 4diac Weekly #107

9 October, 2026

Update on what development happened across the Eclipse 4diac project in the week from October 2 to October 09, 2026.

This week brings a new library export wizard, an AsciiDoc formatting toolbar for the Documentation Editor, and support for Revolution Pi devices in 4diac IDE. Further improvements include typed subapplication attributes, adapter connection validation, and localization preparation, while 4diac FORTE fixes InOut connection handling and 4diac FBE updates open62541.