As we all know, in enterprise information systems, Ethernet has become the de facto standard network. Industrial real-time control is an extension of traditional Ethernet, helping users build more open and integrated industrial automation and information networks. Traditional EtherNet is not designed for industrial applications and does not consider the adaptability needs of industrial field environments. Because the mechanical, climatic, and dust conditions on the industrial site are very harsh, higher demands are placed on the industrial reliability of the equipment. In a factory environment, industrial networks must have good reliability, recoverability, and maintainability. How to achieve stable and reliable work of industrial Ethernet network in harsh environment? Generally speaking, the selection of industrial Ethernet switches needs to be considered: ring network redundancy, virtual local area network (VLAN), network management protocol, error alarm and other functions that can be provided in other industrial Ethernet switches. Yutai Technology's UT series of managed redundant industrial Ethernet switches can provide an economical solution for your Ethernet connection, and can make your industrial Ethernet equipment Ethernet and industrial Ethernet. The industrial switch adopts industry standard design, -40 ℃ ~ 75 ℃ operating temperature range design, overcurrent, overvoltage and EMC protection redundant 24VDC dual power input, built-in intelligent alarm protection, can help system maintainers monitor the network running status in real time, Able to work reliably in harsh and dangerous environments. Ring network redundancy: A ring network uses a continuous ring to connect each device together. It can ensure that the signal sent by one device can be seen by all other devices on the ring. The ring network redundancy refers to whether the switch supports the network when the cable connection is interrupted, the switch receives this information, activates its backup port, and restores network communication to normal operation. At the same time, the 7-port and 8-port disconnected switch in the network, the relay is closed, and the indicator light sends an error alarm to the user. After the cable is repaired normally, the relay and indicator light return to the normal state. VLAN function: VLAN is a flexible grouping of multiple devices placed anywhere on the network, but they communicate as if they are in the same physical segment. With VLAN, you can segment the network without strictly observing the physical connection. This is a major flaw in the traditional network design that strictly follows the physical connection segmentation. Network management function: Network management refers to the network administrator's centralized management of resources on the network through the network management program, including configuration management, performance and accounting management, problem management, operation management and change management. The degree of management supported by a device reflects the manageability and operability of the device. The network management function of the switch refers to how the switch controls users' access to the switch and how visible the user is to the switch. Generally, switch manufacturers provide management software or meet third-party management software to remotely manage switches. General switches meet SNMP MIB I / MIB II statistical management functions. The more complicated switches will increase the built-in RMON group (mini-RMON) to support RMON active monitoring function. Some switches also allow external RMON probes to monitor the network status of optional ports. Alarm function: refers to the situation when the cable connection is interrupted or malfunctions in the ring network. The way to achieve this function is generally to send an alarm to the user by the mail prompt or the relay is closed. Summary: The development of China's Fast Ethernet technology has brought new opportunities for solving the non-deterministic problems of Ethernet. The communication rate of EtherNet is increased from 10M and 100M to 1000M and 10G today. Under the same data throughput, the increase in communication rate means the reduction of network load and the reduction of network transmission delay, that is, the probability of network collision is greatly decline. The EtherNet industrial switch has the functions of data storage and forwarding, so that the input and output data frames between the ports can be buffered, no collision occurs, and the certainty and real-time nature of EtherNet communication are greatly improved. Patrol Car,Highway Patrol Car,Security Patrol Car,Electric Security Patrol Car Jinan Huajiang environmental protection and energy saving Technology Co., Ltd , https://www.hjnewenergy.com