FDI Specification - All Parts

FieldComm Group, FDT Group, OPC Foundation and PROFIBUS & PROFINET International are the co-owners of the FDI specification.
The FDI Technical Specifications is a collection of 19 documents that specify the different aspects of the protocol and test procedures. Additionally, the FDI Technical Specification package includes the Unified EDDL Technical Specifications which consists of 3 documents. The specifications is a package that includes all of the individual documents in the set (total of 22).