5.3 High-Availability Seamless Redundancy (HSR) 3915.3.1 HSR Multicast Topology 3915.3.2 HSR Unicast Topology 3925.3.3 HSR Application in the Substation 3935.4 Rapid Spanning Tree Protocol 3945.5 Self Healing Protocol 3955.6 Dual Homing Protocol 3965.7 Configuring IP Addresses 3985.7.1 Configuring the IED IP Address 3995.7.2 Configuring the REB IP Address 3996 Simple Network Management Protocol (SNMP) 4036.1 SNMP Management Information Bases 4036.2 Main Processor MIBS Structure 4036.3 Redundant Ethernet Board MIB Structure 4046.4 Accessing the MIB 4086.5 Main Processor SNMP Configuration 4087 Data Protocols 4107.1 Courier 4107.1.1 Physical Connection and Link Layer 4107.1.2 Courier Database 4117.1.3 Settings Categories 4117.1.4 Setting Changes 4117.1.5 Event Extraction 4117.1.6 Disturbance Record Extraction 4137.1.7 Programmable Scheme Logic Settings 4137.1.8 Time Synchronisation 4137.1.9 Courier Configuration 4147.2 IEC 60870-5-103 4157.2.1 Physical Connection and Link Layer 4157.2.2 Initialisation 4167.2.3 Time Synchronisation 4167.2.4 Spontaneous Events 4167.2.5 General Interrogation (GI) 4167.2.6 Cyclic Measurements 4167.2.7 Commands 4167.2.8 Test Mode 4177.2.9 Disturbance Records 4177.2.10 Command/Monitor Blocking 4177.2.11 IEC 60870-5-103 Configuration 4177.3 DNP 3.0 4187.3.1 Physical Connection and Link Layer 4197.3.2 Object 1 Binary Inputs 4197.3.3 Object 10 Binary Outputs 4197.3.4 Object 20 Binary Counters 4207.3.5 Object 30 Analogue Input 4207.3.6 Object 40 Analogue Output 4217.3.7 Object 50 Time Synchronisation 4217.3.8 DNP3 Device Profile 4217.3.9 DNP3 Configuration 4297.4 MODBUS 4307.4.1 Physical Connection and Link Layer 4317.4.2 MODBUS Functions 4317.4.3 Response Codes 4317.4.4 Register Mapping 4327.4.5 Event Extraction 4327.4.6 Disturbance Record Extraction 4337.4.7 Setting Changes 4417.4.8 Password Protection 4417.4.9 Protection and Disturbance Recorder Settings 441Contents P14xxii P14xEd1-TM-EN-1