Overview
SIST EN IEC 61784-2-2:2023 is an international standard focused on industrial networks, particularly on communication profiles for real-time fieldbus systems. Developed by the Slovenian Institute for Standardization (SIST) and aligned with IEC standards, this document defines additional profiles for Real-Time Ethernet (RTE) networks, building on ISO/IEC/IEEE 8802-3 (commonly known as Ethernet) and Communication Profile Family 2 (CPF 2). The standard supports the integration of industrial automation systems by enabling reliable, synchronized, and high-performance communication among devices in automation environments.
With industry’s growing demand for real-time and deterministic communication, SIST EN IEC 61784-2-2:2023 addresses the need for robust profiles that combine the broad acceptance of standard Ethernet with the performance required in automated process control and manufacturing.
Key Topics
- Communication Profile Family 2 (CPF 2): Defines sets of RTE communication profiles for industrial automation rooted in widely adopted standards. CPF 2 leverages the Common Industrial Protocol (CIP) for consistency and interoperability in upper network layers.
- Real-Time Ethernet (RTE): The standard provides extensions and detailed communication profiles to enable real-time exchange of process data over Ethernet networks. This includes profiles that specify physical, data-link, and application layer behaviors.
- Performance Indicators: The standard outlines performance indicators such as delivery time, maximum number of end-stations, network topology constraints, and throughput. These indicators help ensure that communication networks meet the rigorous requirements of real-time industrial networks.
- Time Synchronization: Enhanced support for time synchronization-essential for precise control and motion systems-builds on standards such as IEC 61588, increasing the applicability of Ethernet-based networks for demanding applications.
- Network Topology: The defined profiles are typically based on hierarchical star topologies using Ethernet switches, supporting scalability and robustness.
Applications
The SIST EN IEC 61784-2-2:2023 standard is highly relevant in several application areas, including:
- Industrial Process Automation: Integration of controllers, sensors, and actuators requiring deterministic and reliable data exchange with low latency and high synchronization accuracy.
- Manufacturing Automation: Deployment in factory automation for synchronized operations of drives, robots, and other equipment over Ethernet networks.
- Machine-to-Machine Communication: Facilitates machine-to-machine (M2M) data transmission, which is essential for Industry 4.0 and industrial IoT deployments.
- Networked Measurement and Control: Precise and real-time communication for distributed measurement and control tasks in complex automation systems.
- Migration to Ethernet: Supports organizations transitioning legacy fieldbus systems to modern, Ethernet-based communications, retaining compatibility with established protocols and infrastructure.
By applying this standard, organizations can improve interoperability, enhance system scalability, and ensure reliable system performance in real-time industrial networks.
Related Standards
For comprehensive implementation and compliance, the following related standards should be considered alongside SIST EN IEC 61784-2-2:2023:
- IEC 61158 Series: Fundamental industrial communication network specifications for fieldbus technologies.
- IEC 61784-1-2: Details and requirements for CPF 2 fieldbus profiles.
- IEC 61784-2-0: General concepts and terminology for additional real-time fieldbus profiles.
- IEC 61588: Precision clock synchronization essential for time-sensitive and synchronized applications.
- IEC 61918: Guidelines for the installation of industrial communication networks on premises.
- ISO/IEC/IEEE 8802-3: Ethernet standards for local and metropolitan area networks.
- IEEE 802.1Q, IEEE 802.1AS: Specifications for Ethernet network bridging, timing, and synchronization.
SIST EN IEC 61784-2-2:2023 is an indispensable reference for professionals designing or operating real-time industrial Ethernet networks, providing robust frameworks to meet the evolving requirements of automation and process control environments. By leveraging these standards, organizations can build future-ready, reliable, and interoperable industrial automation systems.