In modern network design, the use of Ethernet switches can significantly improve the application performance of the entire user network, that is, all devices connected to the network can communicate with each other through the Internet, from computers, PDAs, communication devices to instruments and household appliances.
Ethernet (Ethernet) is a computer LAN technology. The IEEE 802.3 standard developed by IEEE gives the technical standard of Ethernet. Ethernet has the advantages of wide application, low price, high communication rate, rich software and hardware products, and mature application support technology. At present, it has been widely used in the resource management layer and executive manufacturing layer of integrated automation systems in industrial enterprises. In fact, applying Ethernet products to high-standard industrial environments has become a new development trend. In order to achieve the required reliability in industrial applications, users' industrial Ethernet switches must have the following characteristics:
â— Redundant power input to prevent single power failure
â— Ring topology, providing redundant paths
â— Built-in high-quality and high-reliability parts to ensure a long mean time between failures
◠Can be applied to super-standard temperature conditions, such as -40 ℃ ~ 75 ℃
â— Sturdy and durable shell, keep it away from harmful substances
â— Comply with industrial regulations (CE, FCC, UL, etc.), and pass strict tests such as impact, drop and shock
Industrial Ethernet switch products can use enterprise information networks to publish and display real-time plant operating data within the enterprise. Managers can perform real-time real-time remote monitoring, remote device debugging, and remote device fault diagnosis on site operating conditions through a Web browser. deal with. The easiest way to achieve this is to use an independent Ethernet controller to connect a control host with a TCP / IP interface and a field device with an RS232 or RS485 interface. The Ethernet switch here acts as a bridge between the general computer network and various types of equipment on site.
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