GE Multilin B90 Low Impedance Bus Differential System C-17APPENDIX C C.5 IEC 61850 IMPLEMENTATION VIA ENERVISTA UR SETUPCThe DataTypeTemplates node defines instantiable logical node types. A logical node type is an instantiable template of thedata of a logical node. A LnodeType is referenced each time that this instantiable type is needed with an IED. A logicalnode type template is built from DATA (DO) elements, which again have a DO type, which is derived from the DATA classes(CDC). DOs consist of attributes (DA) or of elements of already defined DO types (SDO). The attribute (DA) has a func-tional constraint, and can either have a basic type, be an enumeration, or a structure of a DAType. The DAType is built fromBDA elements, defining the structure elements, which again can be BDA elements of have a base type such as DA.Figure C–5: ICD FILE STRUCTURE, DATATYPETEMPLATES NODE842798A1.CDRDataTypeTemplatesLNodeType (id, InClass)DO (name, type)Other LNodeType elementsOther DO elementsDOType (id, cdc)DA (name, fc, bType, type)Other DOType elementsOther DOType elementsOther DA elementsDAType (id)BDA (name, bType, type)Other DAType elementsOther DAType elementsOther BDA elementsOther BDA elementsEnumType (id)EnumVal (ord)Other EnumType elementsOther EnumVal elementsTextVal TextSDO (name, type)Other SDO elements
