IEC 61784-5-8:2018

Overview

IEC 61784-5-8:2018 - "Industrial communication networks - Profiles - Part 5-8: Installation of fieldbuses - Installation profiles for CPF 8" defines installation profiles for CPF 8 (CC-Link). It provides the installation-level requirements and guidance to be used together with the communication profile specifications in IEC 61918. Edition 2.0 (2018) contains updated references and extended annexes to cover Ethernet balanced cabling and M12-8 X‑coding connectors relevant to CC-Link IE profiles.

Key topics and technical requirements

This standard organizes installation requirements by communication profile (CP) within CPF 8 and includes normative annexes for specific CPs:

• Annex A - CP 8/1 and CP 8/2 (CC-Link V1 / V2)
• Annex B - CP 8/3 (CC-Link/LT)
• Annex C - CP 8/4 (CC-Link IE Controller Network) - extended to cover balanced Ethernet cabling (reference updated to ISO/IEC 11801‑3)
• Annex D - CP 8/5 (CC-Link IE Field Network) - extended to cover M12‑8 X‑coding connector usage

Common technical topics covered across annexes:

• Installation planning - network capability, topology selection, cabling selection and documentation
• Cabling components - selection and use of cables, flat cable guidance, connector types and coding
• Installation implementation - cable routing, connector and terminator installation, device mounting, coding and labeling
• Earthing and bonding - shield handling and equipment grounding practices
• Verification & acceptance testing - installation verification, as‑implemented documentation, acceptance test criteria
• Maintenance & troubleshooting - procedures for administration and fault isolation

The 2018 edition also replaces the previous ISO/IEC 24702 reference with ISO/IEC 11801‑3 and adds tables and figures supporting Ethernet cabling and M12‑8 X‑coding connector use.

Practical applications and users

IEC 61784-5-8 is practical for:

• System integrators and automation engineers designing or installing CC‑Link networks
• Electrical and field cabling installers implementing compliant cabling topologies and connectorization
• OEMs and panel builders specifying device installation, labeling and earthing
• Test laboratories and compliance officers verifying installation conformance against IEC 61918 and CPF 8 profiles
• Maintenance teams using standardized troubleshooting and documentation practices

Use cases include planning and installing CC‑Link/CC‑Link IE networks in industrial plants, specifying balanced Ethernet cabling for controller networks, and selecting correct M12 X‑coded connectors for field-level devices.

Related standards (read in conjunction)

• IEC 61918 - Communication profile family and CP definitions (normative companion)
• ISO/IEC 11801‑3 - Generic cabling for industrial premises (referenced for balanced Ethernet cabling)
• Other IEC 61784 parts - for profiles of other CPF families and network layers

Keywords: IEC 61784-5-8, CPF 8, CC‑Link, fieldbus installation, installation profiles, industrial communication networks, cabling, M12 X‑coding, balanced Ethernet, IEC 61918.