IEC/TC65/SC65C (Industrial Network Subcommittee) / MT9 (Fieldbus Maintenance Group) .PT60802 (Time Sensitive Network TSN Industrial Automation IA Profile) Standard project team meeting was held in Frankfurt, Germany from July 24th to 26th, 2018 , 23 experts from Germany, the United States, France, Japan, China and other countries attended the meeting. MT9 Convener, German expert Ludwig Winkel presided over the meeting. Mechanical Industry Instrumentation Institute of Integrated Technology and Economy (hereinafter referred to as 'yihe Institute' Dr. Liu Dan, deputy chief engineer, Zhao Yanling, senior engineer and Professor Feng Dongqin from Zhejiang University, Huawei Technology Co., Ltd. Qiu Wei and Bai Hao engineers, a total of 5 Chinese experts attended the meeting.
The TSN related standards are developed by the TSN Task Force under the IEEE802.1 Working Group of the United States to provide deterministic services over the IEEE 802 network, including ensuring limited delay, low message delay variation, and low packet loss rate message transmission. The protocol is transparent, the hardware cost is low, the system architecture is simple, and the combination of OPC UA technology can realize the seamless integration of automation system (OT) and information system (IT), so it is considered as one of the core supporting technologies of future industrial Internet. .
In March 2017, IEC/IEC 61/SC65C Secretariat presented IEC 61784-6 "Industrial Communication Network Profiles Part 6: Time-sensitive Network Profiles for Industrial Applications Based on IEEE 802.1 and IEEE 802.3" (New Project Proposal) The document, after voting, will be included in the scope of work of IEC/TC65/SC65C/MT9 (Fieldbus International Standard Maintenance Group) and form a joint working group with the IEEE TSN Task Force. Due to the particularity and high requirements of industrial automation applications, TSN is combined. The working group decided to first develop an industrial automation profile for TSN to identify specific use cases (application scenarios) and application requirements that must be met. The standard will eventually be released in the form of IEC/IEEE 60802 'Time-sensitive Network Industrial Automation Profile'. The industrial Ethernet convergence defined by the TSN time-sensitive network and the IEC61784-2 communication profile is shown in Figure 1. Different IEC61784-2 communication profiles should be able to connect their own communication profile devices through the TSN bridge.
Experts at this conference for interoperability in industrial automation, clock synchronization, operating modes (industrial automation communication, low latency, deterministic, etc.), industrial automation networks (redundancy guarantee, high availability, wireless, bus gateway, automatic domain protection) Etc.), production line/production unit/manufacturing equipment (M2M communication, functional safety, equipment additions and deletions and interchanges, multiple applications for the same workstation, etc.), DCS undisturbed configuration (device level undisturbed configuration, system level undisturbed configuration), information Security, virtualization, digital hygiene and other use cases and application scenarios were discussed and the use case feedback was processed.
Yihe Institute is the secretariat unit of the IEC/TC65 domestic focal point technical standard committee SAC/TC124 (National Industrial Process Measurement Control and Automation Standardization Technical Committee). Since the beginning of the 'Ninth Five-Year Plan', it has been engaged in fieldbus, industrial Ethernet, industrial products. Networking, industrial Internet research and development, application, testing and standardization work for more than 20 years, led or participated in many national key research and development specialization and application work in this field, and together with domestic universities, research institutes, backbone enterprises and other units to China The self-developed industrial Ethernet EPA, industrial wireless network WIA-PA and WIA-FA core technologies have become international standards, and have achieved fruitful results. Yihe has established the most comprehensive and advanced application-oriented industrial network laboratory in China, including: OPC UA/OPC, PROFIBUS/PROFINET, POWERLINK, HART, MODBUS, KNX and other internationally recognized (third-party) industrial network certification testing centers, also has a team of international industrial network experts recognized by international qualifications, supporting a large number of domestic Industrial network product development and system integration applications. Based on these foundations, in recent years, the ceremonies have undertaken and participated in multiple TSs. N-related intelligent manufacturing, industrial Internet national research projects, a series of basic research work in TSN test bed, OPC UA R&D and conformance testing, TSN and OPC UA integration, etc., while actively tracking TSN international standards, timely concise China's intelligent manufacturing, industrial Internet and other related technical achievements, through SAC / TC124 actively absorb the opinions of domestic experts, and strive to introduce China's independent technology into the new generation of industrial communication international standards, in the international standardization work to make a good voice of China, make China's contribution.
