IEC 61784-5-22:2024

Overview

IEC 61784-5-22:2024 is an international standard developed by the International Electrotechnical Commission (IEC) for the installation of industrial fieldbus networks, specifically detailing installation profiles for Communication Profile Family (CPF) 22. CPF 22 is associated with the fieldbus technology AUTBUS™ (a registered trade name of Kyland Technology Co., Ltd.), but the standard ensures that compliance does not require the use of any specific trade name. This standard is intended to be used alongside IEC 61918:2018 and its amendments, offering supplementary, modified, or replacement requirements for installing CPF 22-based industrial networks.

IEC 61784-5-22 provides comprehensive guidance on network planning, component selection, cabling, installation, verification, maintenance, and documentation tailored to the unique needs of CPF 22 fieldbus environments.

Key Topics

• Scope and Structure

  • Applies specifically to CPF 22 (AUTBUS) industrial fieldbus installations.
  • Structured as an installation profile that supplements or modifies IEC 61918 requirements.
  • Covers all phases from planning through maintenance.

• Installation Planning

  • Recommends that generic cabling (ISO/IEC 11801-3) is not suitable for CPF 22 networks.
  • Addresses network topology options (bus and ring), component selection, and environmental considerations.
  • Requires device compliance declaration from manufacturers.

• Cabling and Connectors

  • Provides specifications for balanced (twisted pair) and unbalanced (coaxial) cabling, including impedance, capacitance, and shielding requirements.
  • Lists acceptable connector types for copper cabling (refer to IEC 61918 templates).
  • Emphasizes the need for proper termination in bus topologies (e.g., 100 Ω to 120 Ω for twisted pair, 50 Ω ± 2% for coaxial cables).

• Implementation and Testing

  • Outlines mechanical parameters for cable installation, such as bending radius, pull force, and temperature range (dependent on cable type and manufacturer’s data).
  • Defines procedures for connector, terminator, device installation, and cable routing.
  • Stipulates verification steps (documentation, coding, labelling) and acceptance testing requirements.

• Earthing, Bonding, and Protection

  • Details approaches for earthing, bonding, and shielded cabling to achieve electromagnetic compatibility (EMC).
  • Ensures separation of circuits and mechanical protection align with both manufacturer and standard requirements.

• Documentation and Maintenance

  • Specifies requirements for installation planning and as-implemented cabling documentation.
  • Provides support for ongoing verification, troubleshooting, and maintenance processes.

Applications

IEC 61784-5-22:2024 is vital for:

• Industrial environments requiring reliable fieldbus communication, especially where CPF 22/AUTBUS™ technology is deployed.
• System integrators, engineers, and installers responsible for planning and implementing industrial communication networks.
• Facility managers and maintenance personnel needing clear installation and maintenance profiles to ensure operational continuity.
• Manufacturers needing to demonstrate device compliance and support proper installation within industrial automation systems.

By following IEC 61784-5-22, organizations ensure standardized installation practices that support interoperability, system reliability, and compliance with global industrial automation requirements.

Related Standards

For complete and effective use, IEC 61784-5-22:2024 should be read in conjunction with the following standards:

• IEC 61918:2018: Industrial communication networks - Installation of communication networks in industrial premises.
• IEC 61918:2018/AMD1:2022: Amendment 1 to IEC 61918:2018.
• IEC 61918:2018/AMD2:2024: Amendment 2 to IEC 61918:2018.
• IEC 61784-1:2023: Fieldbus profiles - Communication Profile Family 22 (CP 22/1).

These related standards provide the foundational requirements and technical background necessary for implementing communication networks in industrial automation and process control settings.

Keywords: IEC 61784-5-22, industrial networks, fieldbus installation, CPF 22, AUTBUS, international standards, industrial automation, network cabling, installation profiles, compliance, IEC 61918, industrial communication.