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 #75

27 February, 2026

Update on what development happened across the Eclipse 4diac project in the week from February 20 to February 27, 2026.

This week’s updates focus on major internal robustness improvements, enhanced refactoring support, and continued modernization of the 4diac IDE UI. 4diac FORTE advances OPC UA alarm handling and communication extensibility, while documentation improves developer onboarding.

Eclipse 4diac 3.1 Development Milestone: Feature Freeze

26 February, 2026

Eclipse 4diac 3.1 has reached the Feature Freeze milestone. This transition marks the completion of new functional development for the upcoming release, shifting the focus toward stabilization, final testing, and documentation.

Eclipse 4diac Weekly #74

20 February, 2026

Update on what development happened across the Eclipse 4diac project in the week from February 13 to February 20, 2026.

This week’s updates target mainly 4diac IDE and focus on improved editor tooling, refactoring support, and robustness across modeling and model interpretation.