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.

Learn More

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

View all

Eclipse 4diac Weekly #71

30 January, 2026

Update on what development happened across the Eclipse 4diac project in the week from January 23, 2026 to January 30, 2026.

This week’s updates focus on robustness and usability improvements in the 4diac IDE, with refinements across refactoring, library element handling, system management, UI consistency, and replay debugging support. 4diac FORTE complements this with targeted fixes and cleanups around array/value conversions, diagnostics, and code consistency.

Eclipse 4diac Weekly #70

23 January, 2026

Update on what development happened across the Eclipse 4diac project in the week from January 16, 2026 to January 23, 2026.

This week’s updates bring improvements to 4diac IDE, including refactoring of library element handling, better editor interaction, and improved visuals in light and dark themes. 4diac FORTE receives improvements related to documentation generation and composite FB connection support.

Eclipse 4diac Maintenance Release

20 January, 2026

We are pleased to announce a maintenance release of Eclipse 4diac 3.0. This release provides 4diac IDE 3.0.2 and 4diac FORTE 3.0.1.