Self-Declaration of Conformity to IEC 62657-4 for SRF Wireless Platform Communication Standard

The Flexible Factory Partner Alliance (FFPA) has implemented a Self-Declaration of Conformity for the latest communication standard of the SRF (Smart Resource Flow) wireless platform, Technical Specification Ver.2.1, to the IEC 62657-4 standard, "Industrial networks - Coexistence of wireless systems - Part 4: Coexistence management with central coordination of wireless applications."

[Self-Declaration of Conformity to IEC Standard]
FFPA has confirmed conformity to IEC 62657-4: 2025 for its SRF wireless platform Technical Specification Ver.2.1, which enables stable coexistence of diverse wireless systems used in manufacturing sites. Details are available on the FFPA website.

[Public Release of Technical Specification Ver.2.1]
Technical Specification Ver.2.1 of the SRF wireless platform, subject to the self-declaration, has been released to the public. It defines the reference architecture, functions, messages/parameters between functional blocks, representative sequence diagrams, and data frames for the SRF wireless platform. While maintaining backward compatibility with Ver.1.1, new features such as 5G Control for Frequency Control, 5G Control for Multi-radio Integration Control, Multi-hop Control, and interface functions for IEEE 802.11ah have been added. The specifications are available for download on the FFPA website.

[Event Information]
FFPA will exhibit at Wireless Japan x Wireless Technology Park 2026, held at Tokyo Big Sight from May 27 to 29, 2026. The exhibit will showcase use cases utilizing the SRF wireless platform for troubleshooting and addressing wireless communication issues in manufacturing sites. Additionally, the 20th workshop, scheduled for June 29, 2026, will feature introductions and discussions on these use cases. Interested parties should contact the FFPA secretariat.

[Composition of the SRF Wireless Platform]
The SRF wireless platform consists of the Field Manager, SRF Gateway, SRF Device, and SRF Sensor. The Field Manager is a controller that integrates and manages multiple wireless systems, coordinating resources to meet application requirements and avoiding radio interference. The SRF Gateway/SRF Device act as parent/child units, autonomously controlling wireless resources according to control policies from the Field Manager and reporting status. The SRF Sensor detects and monitors wireless equipment.