Overview
IEC 61784-5-6:2024 defines installation profiles for CPF 6 (INTERBUS™) within the IEC 61784 series “Industrial networks – Profiles”. This edition (5.0, redline) specifies the installation rules and requirements that implementers must follow for CPF 6 networks. The standard’s annexes provide the network-specific installation profiles and are to be read together with IEC 61918:2018 and its amendments (AMD1:2022, AMD2:2024). The document covers both non‑Ethernet (Type 8) and Ethernet-based CPF 6 network installations.
Key topics and technical requirements
The standard organizes requirements into planning, implementation, verification and maintenance. Major technical topics include:
- Installation planning
- Network topology and capabilities
- Cabling selection and planning documentation
- Maximum link lengths and network characteristics (balanced copper and optical fibre)
- Cabling components and selection
- Parameters for balanced cables, silica and plastic optical fibre (POF), hard-clad silica
- Guidance on fixed cabling vs. cords and remote bus fibre lengths
- Connector and device installation
- Connector types and pin assignments (examples: Sub‑D, M23, M12, terminal connectors)
- Connector installation, terminator placement and device mounting
- Earthing, bonding and shielding
- Shield cabling practices, equipment earthing and bonding guidance
- Documentation, labelling and administration
- As‑implemented cabling documentation, coding and labelling conventions
- Verification and acceptance testing
- Installation verification procedures and acceptance test criteria
- Maintenance and troubleshooting
- Procedures for ongoing administration and fault resolution
The annex structure (Annex A for Type 8, Annex B for Ethernet CPF 6/2) contains normative tables, figures and pinouts to assist implementers.
Applications and who uses it
IEC 61784-5-6 is used by professionals responsible for the physical deployment of industrial fieldbus networks where CPF 6 profiles apply, including:
- Industrial network designers and system integrators
- Automation and control engineers
- Panel builders, installers and commissioning teams
- OEMs producing INTERBUS-compatible devices
- Maintenance and reliability engineers responsible for cabling and network troubleshooting
- Certification bodies assessing conformance to CPF 6 installation profiles
Typical applications include factory automation, process control and machine-level communication systems using INTERBUS-based fieldbus topologies or CPF 6 Ethernet implementations.
Related standards
- IEC 61918:2018, with AMD1:2022 and AMD2:2024 - normative references for CPF 6 installation profiles
- Other parts of IEC 61784 (Profiles) - for protocol and profile definitions relevant to industrial networks
Keywords: IEC 61784-5-6, CPF 6, INTERBUS, industrial networks, installation profiles, fieldbus installation, cabling, Ethernet, fibre optic, installation verification.