1 CHAPTER OVERVIEW
This chapter consists of the following sections:
1
Chapter Overview
2 SCADA Communications
2.1 Modbus
2.1.1 Overview
2.1.1.1 Physical Connection and Link Layer
2.1.2 MODBUS Functions
2.1.2.1 Protocol Mapping
2.2 IEC60-870-5-103
2.2.1 Overview
2.2.2 Physical Connection and Link Layer
2.2.3 Initialisation
2.2.4 Time Synchronisation
2.2.5 Spontaneous Events
2.2.6 General Interrogation (GI)
2.2.7 Cyclic Measurements
2.2.8 Commands
2.2.9 Test Mode
2.2.10 Disturbance Records
2.2.11 Configuration
2.2.12 Protocol Mapping