CHAPTER 3: IEC 61850 COMMUNICATION MODEL IMPLEMENTATION CONFORMANCE STATEMENT (MICS)UR FAMILY – COMMUNICATIONS GUIDE 3-3733.5.2 Protection (Prot) logical deviceThe Prot logical device contains logical nodes that model protection and protection-related functions.The Prot logical device is available when the IEC 61850 option is purchased with the UR device.3.5.2.1 Logical node zero (LLN0)LLN0 is instantiated in all UR family devices implementing the Prot logical device.Table 3-19: Logical node zero data objects for protectionsetMag.f FLOAT32 ANALOG IN ψ MIN R/CminVal AnalogueValue CF RminVal.f FLOAT32 -1 000 000 000 000 RmaxVal AnalogueValue CF RmaxVal.f FLOAT32 1 000 000 000 000 RstepSize AnalogueValue CF RstepSize.f FLOAT32 0.001 RLNName: LLN0 LDevice inst: Prot UR element: Nameplate information for the logical nodesdata obj. data attribute Type FC UR Name Description R/W/CBeh ENS This logical device’s behaviour RstVal ENUMERATED ST RstVal ENUMERATED ST LLN0.Beh.stVal of the Masterlogical deviceRHealth ENS Only instantiated in the Master logicaldeviceRstVal ENUMERATED ST LPHD1.PhyHealth.stVal ROn SPS Only instantiated in the Master logicaldeviceRstVal BOOLEAN ST ROff SPS Only instantiated in the Master logicaldeviceRstVal BOOLEAN ST RZero MV Only instantiated in the Master logicaldeviceRmag AnalogueValue MX Rmag.f FLOAT32 0.0 RMod ENC Only instantiated in the Master logicaldeviceR/CtrlctlVal ENUMERATED RstVal ENUMERATED ST RctlModel CtlModels CF LLN0.Mod.ctlModel 2, the code for SBO control with normalsecurity according to IEC 61850-7-2.R/CsboTimeout INT32U CF 30000 RsboClass SboClasses CF 0 (operate-once) RoperTimeout INT32U CF 0 RGrRef ORG Reference to root logical device RsetSrcRef ObjectReference SP For communications, mapped toMaster ldName if not empty,otherwise to the concatenationof the IED name and “Master”.For SCL, mapped to theconcatenation of the IED nameand “Master”.reference to the data attribute to input RMltLev SPG Instantiated only in the Master logicaldeviceRsetVal BOOLEAN SP RLNName: prefix>GGIO4LDevice inst: Master UR element: FlexAnalog Operand Interface functionalitydata obj. data attribute Type FC UR Name Description R/W/C