Communication will become an obstacle to industrial Ethernet - Database & Sql Blog Articles

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In the past decade, in the field of factory automation and process automation, fieldbus is the mainstream solution in field-level communication systems. However, with the continuous advancement and development of technology, traditional fieldbus has increasingly shown its limitations.

On the one hand, as the intelligence of field devices continues to increase, control becomes more and more dispersed, and control data needs to be continuously exchanged between smart devices distributed throughout the plant and between smart devices and plant control layers. The exchange of data between devices is growing rapidly

On the other hand, with the development of computer technology, enterprises hope to integrate the underlying production information into a unified plant-wide information management system. Therefore, the enterprise information management system needs to read the production data of the site and pass the industrial communication network. Implement remote services and maintenance.

Therefore, vertical consistency has also become a hot topic. Users want management and field level to use a unified communication solution compatible with office automation technology, which greatly simplifies the structure of the plant control system and saves the cost of system implementation and maintenance.

Based on this demand, Ethernet technology began to infiltrate from the information management layer of factories and enterprises, and Ethernet technology began to be widely used in control level communication of factories. The use of Ethernet solutions in the automation world has several significant advantages: a unified architecture, integrated communications, and powerful service and diagnostic capabilities. From the current situation of industrial automation control, the replacement of fieldbus by Ethernet technology is an inevitable trend of industrial control network development.

However, applying Ethernet technology to the production control process of a factory is not a simple migration process. In the process of introducing Ethernet technology into the control level communication, in order to meet the special requirements of the industrial control system, such as the field environment, topology, reliability and other requirements, it is necessary to adjust and supplement the ordinary office Ethernet to ensure The reliability of Ethernet technology in industrial field applications, which is what we often call Industrial Ethernet.

At present, in the field of control-level communication networks, industrial Ethernet solutions have been widely recognized and accepted, and enterprises and factories have fully enjoyed the convenience and benefits brought by high-performance communication networks. Despite this, Industrial Ethernet technology has encountered insurmountable obstacles to the penetration of the lowest-level field-level control systems—the real-time and deterministic nature of communications.