Communication Protocols and Interface Systems in Microprocessor Based Electrical Devices

Overview

Introduction:

Microprocessor based electrical systems depend on standardized communication protocols and hardware interfaces to support coordination, protection, and monitoring in automated environments. Protocols such as IEC 61850, IEC 103, IEC 104, Modbus, TCP/IP, and PROFINET enable system level communication between protective devices, control systems, and supervisory platforms. This training program presents structured frameworks on protocol functions, device integration, and networking architecture. It also covers interface models and diagnostic tools that support performance reliability and data integrity.

Program Objectives:

By the end of this program, participants will be able to:

  • Identify key communication protocols used in microprocessor-based electrical and automation systems.

  • Analyze the structures and use cases of IEC 61850, IEC 103, IEC 104, Modbus, TCP/IP, and PROFINET.

  • Evaluate network topologies and integration models for substation and industrial environments.

  • Explore protocol operations through configuration and diagnostic platforms.

  • Review interface systems linking communication hardware, protocol logic, and supervisory control.

Targeted Audience:

  • Electrical engineers in automation and protection systems.

  • SCADA and substation control engineers.

  • Instrumentation and network integration personnel.

  • Protocol configuration specialists.

  • System engineers in industrial and utility settings.

Program Units:

Unit 1:

Communication Protocols in Automated Electrical Systems:

  • Roles and classifications of protocols in industrial and utility environments.

  • Categories of fieldbus, Ethernet based, and serial communication protocols.

  • Layers of communication and protocol stack interpretation.

  • Integration logic between relays, IEDs, and automation components.

  • System requirements for multi-protocol compatibility and data integrity.

Unit 2:

IEC 61850 Framework and Application:

  • Logical node modeling and data structure in IEC 61850.

  • Role of GOOSE messaging and Sampled Values in substation control.

  • Configuration methods using Substation Configuration Language (SCL).

  • Overview of IED configurators and DIGSI integration environments.

  • Interfacing procedures with legacy and hybrid system components.

Unit 3:

IEC 103, IEC 104, Modbus, and TCP/IP:

  • Structural overview of IEC 103 and application in protection schemes.

  • Data transport over IEC 104 and TCP/IP based systems.

  • Protocol addressing, ASDU formats, and control command logic.

  • Integration roles of Modbus RTU/TCP in mixed communication networks.

  • System requirements for protocol coexistence and mapping.

Unit 4:

PROFINET and Network Architecture Models:

  • PROFINET communication structures and industrial application scope.

  • Mapping steps of real-time and non-real-time data channels.

  • Topology design strategies for highavailability communication networks.

  • Network device roles, including switches, protocol converters, and gateways.

  • Redundancy structures, including PRP, HSR, and fault tolerant models.

Unit 5:

Diagnostic Tools, Interfaces, and Integration Systems:

  • Protocol analyzers and simulation software for diagnostics.

  • Interface systems, including RTUs, IEDs, network modules, and testing equipment.

  • Key steps for monitoring message flow, synchronization signals, and event logs.

  • Methods for evaluating protocol conformance and reliability.

  • Final integration steps, checklists, and validation structures.