IEC 61784-2-4-2023 PDF

Full title and description

St IEC 61784-2-4-2023 — Industrial networks - Profiles - Part 2-4: Additional real-time fieldbus profiles based on ISO/IEC/IEEE 8802-3 — CPF 4. This part of IEC 61784 defines extensions and specific communication profile(s) for Communication Profile Family 4 (CPF 4), providing profile-level rules and selections for Real‑Time Ethernet (RTE) implementations based on IEC 61158 (Type 4) and ISO/IEC/IEEE 8802-3.

Abstract

IEC 61784-2-4:2023 specifies additional real‑time fieldbus profiles for industrial networks belonging to CPF 4. The standard maps required and optional protocol elements across physical, data‑link and higher layers, defines constraints and parameter selections for interoperable device and network implementations, and provides guidance for network components and performance indicators applicable to CPF 4 Real‑Time Ethernet solutions.

General information

• Status: Published / Current
• Publication date: 30 March 2023
• Publisher: International Electrotechnical Commission (IEC)
• ICS / categories: 35.100.20; 35.240.50
• Edition / version: Edition 1.0 (2023)
• Number of pages: 45

Scope

This part of IEC 61784 defines profile-level extensions for Communication Profile Family 4 (CPF 4) for Real‑Time Ethernet. It identifies the specific protocol building blocks (drawn from IEC 61158 Type 4 and IEEE/ISO Ethernet standards), lists mandatory and optional features, and sets parameter constraints and performance indicators required for interoperable CPF 4 implementations. The scope covers device and network component roles, protocol mappings, and conformance considerations necessary for deploying CPF 4 real‑time fieldbus profiles in industrial automation environments.

Key topics and requirements

• Definition and naming of CPF 4 communication profile(s) and their role within the IEC 61784 series.
• Protocol selections and mappings from IEC 61158 (Type 4) and ISO/IEC/IEEE 8802-3 (Ethernet) for physical, data‑link and higher layers.
• Mandatory and optional services, parameters and constraints required for device and network interoperability.
• Performance indicators (PIs) and guidance for evaluating latency, jitter, throughput and maximum node counts relevant to CPF 4 profiles.
• Network component descriptions and roles (switches, end stations, gateways) and their required capabilities.
• Timing and synchronization considerations for time‑sensitive operations (references to relevant time‑sync standards are indicated where applicable).
• Conformance and implementation guidance to support testing and certification of CPF 4 devices and systems.
• Normative and informative references to related IEC, ISO and IEEE standards used by CPF 4 profiles.

Typical use and users

IEC 61784-2-4:2023 is used by industrial automation product developers, device manufacturers, system integrators, test laboratories and standards committees. Typical applications include designers implementing real‑time Ethernet communications in factory automation and process control equipment, and engineers responsible for network selection, configuration and conformance testing of CPF 4 compatible devices and installations.

Related standards

Key related standards and documents include other parts of the IEC 61784 series (for example Part 1-4 defining CPF 4), IEC 61158 (the protocol/service/type definitions), ISO/IEC/IEEE 8802-3 (Ethernet standards), IEC 61784-2 (other Part 2-x real‑time profile parts), IEC 61784-3 (functional safety profiles), and time‑synchronization and QoS references such as IEEE 802.1AS / IEC 61588 where time coordination is required.

Keywords

CPF 4, IEC 61784, real‑time Ethernet, RTE, fieldbus profile, IEC 61158 Type 4, ISO/IEC/IEEE 8802-3, communication profile family, CP, industrial networks, interoperability, performance indicators.

FAQ

Q: What is this standard?

A: IEC 61784-2-4:2023 is Part 2-4 of the IEC 61784 series that defines additional real‑time fieldbus profiles for Communication Profile Family 4 (CPF 4), specifying protocol selections and constraints for Real‑Time Ethernet implementations.

Q: What does it cover?

A: It covers the profile definitions, protocol mappings (physical to application layer selections), mandatory and optional features, parameter constraints, network component roles, and guidance on performance indicators and conformance for CPF 4 real‑time fieldbus profiles.

Q: Who typically uses it?

A: Device and equipment manufacturers, system integrators, network architects, test labs and certification bodies use the standard to design, implement and verify CPF 4 real‑time Ethernet devices and systems.

Q: Is it current or superseded?

A: This part was published in 2023 and is the current edition (Edition 1.0, published 30 March 2023). The IEC webstore lists a stability date (planned review) extending the document’s stability for a defined period following publication.

Q: Is it part of a series?

A: Yes. It is part of the IEC 61784 series (Industrial networks — Profiles). Part 1-4 defines CPF 4, Part 2 contains additional RTE profile parts, and other related parts address safety, conformance and general concepts.

Q: What are the key keywords?

A: CPF 4, Real‑Time Ethernet (RTE), IEC 61158 Type 4, ISO/IEC/IEEE 8802-3, fieldbus profiles, communication profile family, interoperability, performance indicators.