Industrial Ethernet means that in industrial environments, the related components and technologies of Ethernet can be applied to industrial equipment. Industrial Ethernet will adopt TCP/IP protocol, and is compatible with IEEE802.3 standard. Ethernet network is in industrial environment. In applications, the requirements for vibration, temperature, humidity and electromagnetic interference are more stringent than those of the general IT industry.
In the past, each production facility in the factory took its own independent system, and each device could not share production information. However, with the development of Ethernet and wireless communication technologies, Industrial Ethernet has become an important basic device for integrating equipment in the factory. Industrial network communication equipment can be widely used in various fields, such as telecommunications, industrial control, defense, transportation, factory automation and energy market applications.
In the past, industrial networks did not have a standard communication interface. If connection integration is required, the system architecture will be implemented through specific communication interfaces such as RS232 and RS485/422, and then through closed busbars for data transmission or industrial automation control applications.
The subsequent development of network technology and construction capabilities, coupled with the open architecture of the Ethernet network itself, with the characteristics of communication protocols such as upgrade simplification and easy maintenance, has also brought about new changes in the industrial communication equipment market. Whether it is used for equipment control or production data collection, diversified production equipment and equipment have an urgent need to connect to the network under the existing network trend.
Industrial Ethernet network focuses on TCP/UDP/IP, not the physical layer of the Ethernet network. The information defined by the original industrial network application layer is encapsulated in the network layer and transport layer of the Ethernet network. Therefore, the industrial Ethernet network standardizes 3 pieces. Things: 1. The Ethernet network ensures that the data is delivered, but there is no way to ensure when the data is delivered. In other words, most applications must re-optimize the system for real-time performance. 2. The Ethernet network has developed a set of shared application layer standards, which can make the definition and interpretation of information transmission packets more benchmark. 3. For the original commercial Ethernet network, the conventional RJ45 connector is not suitable for industrial production environments, and the industrial-standard special connector becomes an essential component of Industrial Netcom. Therefore, network equipment suitable for industrial environments becomes an essential component. .
For the owner, using Industrial Ethernet can improve the operational efficiency of the plant, such as: increase the transmission rate, if using Gigabit Ethernet, use CAT-5e, CAT-6 network cable or fiber as the transmission medium, transmission rate Can go to 1Gbit/sec.
In addition to increased transmission speed, standard network access devices such as wireless accessors, routers, network switches, and hubs can also be used. Ethernet network has gradually become the standard in the industrial control industry. Most of the automation equipment has set the Ethernet communication port as standard equipment when it comes out. The difference is the number of turns.
The existing industrial network gateways in the market have specifications ranging from 1 to 16 inches. Since the back-end system management is mostly based on PC technology, the industry has purchased a serial converter with a PC-based architecture. Can be installed in the PC for signal transmission.
Serial products, such as RS-232, RS-422, RS-485, etc., still occupy most of the industrial communication-related markets. If enterprises want to build an industrial communication network environment, they must first check the communication used in their production sites. Agreement specifications, if the system architecture is still in the serial network architecture, you must first purchase a multi-port server for basic network environment construction.
In the future development trend of industrial communication equipment, there are mainly: 1. Increase the security of data transmission by means of encryption. 2. Increase the stability of network transmission speed. 3. Towards the development of wireless transmission. These three aspects are the future development trend of industrial networks.
Ethernet technology data set - Ethernet technology: Towards a new era of industrial materials
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