EPA real-time Ethernet technology research to the national "863" program CIMS theme series of topics "based on high-speed Ethernet technology fieldbus control equipment", "field-level wireless Ethernet protocol research and equipment development. Ethernet protocol research and equipment development", "industrial field equipment based on 'Bluetooth' technology, monitoring network and key technology research", and "EPA-based distributed network control system research and development", Relying on the rolling topics such as "EPA-based product development simulation system", the company has successively solved the key technical problems such as certainty and real-time, network power supply, interoperability, network security, reliability and anti-interference of Ethernet used for communication among industrial field devices, and developed EPA-based distributed network control system, which is firstly used in chemical, pharmaceutical and other production devices. It has been successfully applied to chemical and pharmaceutical production units.
On this basis, the Standard Drafting Working Group drafted China's first national fieldbus standard with independent intellectual property rights, "EPA System Structure and Communication Specifications for Industrial Measurement and Control Systems". At the same time, the standard was included in the fieldbus international standard IEC 61158 (fourth edition) in the fourteenth type, and listed with IEC 61158 matching real-time Ethernet application specification international standard IEC 61784-2 in the fourteenth application specification clusters (Common Profile Family 14, CPF14), marking China's first fieldbus international standard with independent intellectual property rights ---
The standard drafting working group drafted China's first national standard "EPA System Structure and Communication Specification for Industrial Measurement and Control Systems", based on the standard. This marks China's first fieldbus international standard with independent intellectual property rights --- EPA has been formally recognized by the International Electrotechnical Commission and has fully entered the fieldbus international standardization system.
At present, with the development of computer, communication, network and other information technology, the field of information exchange has covered factories, enterprises and even markets around the world, and with the further development of automation and control technology, there is a need to establish a comprehensive automation network platform that includes all levels from the industrial field equipment layer to the control layer, management layer, and so on, and to establish an enterprise informatization system based on industrial network technology. system based on industrial network technology. At present, the data and information transmitted between different network levels in the enterprise has become more and more complex, the openness of the industrial network, interconnectivity, bandwidth and other aspects of the proposed higher requirements.
EPA is built on this foundation of industrial field equipment open network platform, through the platform, not only can make the industrial field equipment (such as field controllers, transmitters, actuators, etc.) to achieve Ethernet-based communication, but also can make the industrial field equipment layer network is not outside of the mainstream communications technology, and synchronized with the mainstream development of communications technology, and at the same time, with the Ethernet field equipment At the same time, the Ethernet field equipment layer to the control layer, management and other levels of the network "E network to the end", to achieve seamless integration of information at all levels of the comprehensive automation system of industrial enterprises, to promote technological transformation and upgrading of industrial enterprises, to speed up the transformation process of information technology.