IEC 61784-2-13:2023

Overview

IEC 61784-2-13:2023 is an international standard published by the International Electrotechnical Commission (IEC) that defines Communication Profile Family 13 (CPF 13) for industrial networks. This standard specifies a Real-Time Ethernet (RTE) communication profile-commonly known as Ethernet POWERLINK-based on the IEC 61158 series (Type 13), ISO/IEC/IEEE 8802-3 (Ethernet), and complementary standards. CPF 13 sets the framework for integrating real-time fieldbus profiles with Ethernet communication infrastructure, enabling deterministic and synchronized data exchange suited for industrial automation.

The document addresses the need for real-time data transfer and precise synchronization among industrial devices while maintaining interoperability with standard Ethernet protocols. It incorporates performance indicators for real-time Ethernet networks, allowing users to evaluate and select network components according to specific application requirements.

Key Topics

• Communication Profiles (CP): IEC 61784-2-13 defines the structure and specifications of CPF 13, detailing physical, data-link, and application layer protocols specific to Real-Time Ethernet use cases in automation.

• Real-Time Ethernet (RTE): Builds upon Ethernet standards to provide real-time capabilities such as deterministic data delivery, synchronization between field devices (e.g., drives), and efficient handling of small data records.

• Performance Indicators (PI): The standard specifies relevant RTE performance indicators, including dependencies among them, which are crucial for assessing network behavior, latency, reliability, and scalability based on system size and needs.

• Use of ISO/IEC/IEEE 8802-3: CPF 13 leverages existing Ethernet standards and extends them with amendments where necessary to meet stringent industrial real-time requirements without compromising typical Ethernet functionalities.

• Network Components: Guidelines and definitions for network components compatible with CPF 13 ensure unified implementation and interoperability among devices from different manufacturers.

Applications

IEC 61784-2-13:2023 primarily targets industries requiring reliable and deterministic communication over Ethernet-based fieldbus systems. Typical application domains include:

• Industrial Automation: Controllers, sensors, actuators, and drives communicate through real-time networks enabling synchronized and efficient control processes.

• Motion Control Systems: Real-time synchronization of motors and drives is critical for manufacturing lines, robotics, and precision machinery.

• Process Control: Continuous and batch processing industries benefit from the standardized real-time profiles enabling accurate monitoring and control.

• Small to Large Automation Systems: Tailored performance indicators allow the standard to apply across various scales of automation systems, from small facilities to large industrial plants.

• Integration of IT and OT Networks: CPF 13 facilitates the coexistence of office-grade Ethernet and industrial real-time Ethernet, allowing seamless connectivity without losing real-time capabilities.

Related Standards

• IEC 61158 Series: Defines industrial communication network fieldbus specifications including Type 13 elements relevant to CPF 13.

• ISO/IEC/IEEE 8802-3: The foundational Ethernet standard used for underlying network communication.

• IEC 61784-1: Contains general requirements and definitions for communication profile families in industrial networks.

• IEC 61784-2: Defines additional real-time fieldbus profiles; IEC 61784-2-13 is a subpart focusing on CPF 13.

• Other IEC and ISO Standards: Ensuring compatibility and interoperability, the CPF 13 profiles leverage various standards that specify layers and protocols in industrial networking.

Practical Value

For engineers, system integrators, and equipment manufacturers, IEC 61784-2-13 offers a structured approach to implement real-time Ethernet communication profiles ensuring:

• Standardized Network Design: Reduces fragmentation by preventing divergent implementations and promotes interoperability.

• Performance Assurance: Provides measurable performance indicators to match network design with application demands.

• Extended Ethernet Use: Enables deployment of Ethernet technology in environments requiring robust, deterministic communication without forfeiting standard Ethernet capabilities.

• Future-Proofing Industrial Networks: Supports modern trends in industrial communication by integrating real-time features while maintaining compatibility with global standards.

By adopting IEC 61784-2-13:2023, industries can achieve predictable, synchronized, and efficient communication in fieldbus networks based on Ethernet, supporting advanced automation and control systems with future scalability.