IEC 61804-3:2015 specifies the Electronic Device Description Language (EDDL) technology, which enables the integration of real product details using the tools of the engineering life cycle. It specifies EDDL as a generic language for describing the properties of automation system components. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: Builtins and their profiles removed and relocated into IEC 61804-5. The following extensions are integrated in the EDDL specification to meet FDI requirements:
- new contructs BLOB, PLUGIN;
- component construct for communication server requirements (additional attributes);
- extension of the class attribute;
- new attributes PRIVATE, VISIBILITY, WRITE_MODE.