As an important part of IEC61804-2PAS,EDDL is a harmonized specification of existing traditional EDD. The EDDL elements and Builtin are specified in this professional specification for three of fieldbuses including HART,PROFOBUS and FF.

• EDDL作为IEC61804-2PAS规范的重要组成部分,是现存传统DD的协调规范,其行规规定了包括HART、Profibus、FF在内的3种现场总线的EDDL元素和Builtin。