Opc-Ua Communication Standard; Opc-Ua Architecture - GE 350 Communications Manual

GE
Digital Energy
SR350 Feeder Protection System
Chapter 5: OPC–UA Communication
Standard
Definitions and Acronyms
OPC–UA Architecture
350 FEEDER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
OPC–UA Communication Standard
This chapter describes the implementation process for the OPC-UA (OLE for Process
Control – Unified Architecture) in the 350 relay.
• OPC-UA – OLE for Process Control - Unified ArchitectureOLE – Object Linking and
EmbeddingSOA – Service Oriented ArchitectureDA – Data AccessAE – Alarms and
EventsSDK – Software Development KitCTT – Compliance Test Tool
The OPC communication is done through Client-Server architecture. In the case of the
350 relay, the relay is implemented as the Server.
The parts that are being supported are:
• OPC-UA DA
– Read and write actions of the data service. The data service deals with real-time
data, not historical data.
• OPC-UA AE
– Lecture events service.
• OPC-UA Methods
– Service commonly used for commands
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