IEC 61784-1-1:2023

Overview

IEC 61784-1-1:2023 is an international standard published by the International Electrotechnical Commission (IEC) that defines the Communication Profile Family 1 (CPF 1) for industrial networks. Specifically, it focuses on fieldbus profiles used in factory manufacturing and process control environments. CPF 1 incorporates protocol-specific communication profiles (CPs) based on the IEC 61158 series (notably Type 1, Type 5, and Type 9) and other globally recognized standards.

This standard provides a structured framework for designing communication devices in industrial automation, ensuring interoperability, reliability, and efficiency in fieldbus communications. It selects consistent subsets of services and protocols from the IEC 61158 series and specifies constraints on parameter values to optimize their use in factory and process control systems.

Key Topics

• Communication Profile Family 1 (CPF 1): Defines the set of communication profiles based on IEC 61158 for fieldbus networks used in industrial automation.

• Protocol Specific Communication Profiles (CPs): CPF 1 includes multiple CPs such as:

  • CP 1/1 (FOUNDATION™ H1) - Detailed specifications across physical, data-link, and application layers.
  • CP 1/2 (FOUNDATION™ HSE) - Covers physical to application layers tailored for high-speed ethernet networks.
  • CP 1/3 (FOUNDATION™ H2) - Specifications for layers including physical and data-link within certain industrial applications.

• Layered Communication Structure:

  • Physical Layer: Definitions include types of physical media, connectors, fiber optics, power supplies, and intrinsic safety parameters.
  • Data-Link Layer: Selection of data-link services and protocols ensuring reliable transmission and network access.
  • Application Layer: Guidance for application-specific messaging and control tailored to industrial processes.

• Safety and Intrinsic Safety Considerations: Selection and classification of components ensure compliance with intrinsic safety requirements essential in hazardous environments.

• Compatibility and Interoperability: CPF 1 aligns communication profiles with international and open standards for seamless device integration.

Applications

IEC 61784-1-1:2023 is essential for:

• Factory Automation: Ensuring robust and standardized communication protocols for field devices such as sensors, actuators, and controllers.

• Process Control Systems: Facilitating reliable data exchange in continuous process environments where safety and accuracy are critical.

• Device Manufacturers: Providing a blueprint to design communication modules that conform to international fieldbus standards for broader market acceptance.

• System Integrators: Supporting the selection and deployment of compatible fieldbus devices and communication architectures to optimize system performance.

• Hazardous Locations: Guiding the implementation of intrinsic safety parameters for devices operating in explosive or otherwise dangerous industrial environments.

Related Standards

• IEC 61158 Series: The foundational series of international standards specifying the fieldbus communication protocols which CPF 1 profiles are based on.

• IEC 61784: The broader standard covering profiles for industrial communication networks, with Part 1-1 focusing on CPF 1 and other parts covering additional communication profile families.

• IEC 61131: Related to programmable controllers which interact with devices using these fieldbus communication profiles.

• Intrinsic Safety Standards: Including IEC 60079 series, which complements the safety parameters addressed in CPF 1 for devices used in hazardous industrial environments.

Benefits of IEC 61784-1-1:2023

• Standardization: Promotes consistent implementation of fieldbus communication for industrial networks worldwide.

• Enhanced Interoperability: Ensures devices from different manufacturers can communicate effectively, reducing integration complexity.

• Improved Safety: Incorporates intrinsic safety constraints supporting use in hazardous areas.

• Optimized Network Design: Provides detailed layered communication profiles enabling engineers to design efficient and reliable industrial communication systems.

• Future Proofing: Aligns with evolving international standards and open standards processes, facilitating technology updates and scalability.

IEC 61784-1-1:2023 is a cornerstone reference for professionals in industrial automation, offering comprehensive guidelines for the design, implementation, and validation of fieldbus communication networks under Communication Profile Family 1. This standard is vital for ensuring advanced, interoperable, and safe communication protocols essential for modern manufacturing and process control systems.