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The switch generally refers to the Ethernet switch (excluding the program-controlled switch for telecommunications, otherwise the explanation is too complicated).
Ethernet switches are generally divided into: commercial (Ethernet) switches, industrial (Ethernet) switches, and household (Ethernet) switches.
Commercial switches are generally used in enterprise office networks and other occasions, and are generally rack-type, installed in enterprise computer rooms, and usually require high reliability, 24-hour uninterrupted long-term operation, large bandwidth, and more interfaces. Main brands: Cisco, H3C, Huawei, etc.
Industrial switches are generally used in industrial production occasions, usually with a variety of appearance and installation forms, according to different applications, there are requirements for waterproof, dustproof, anti-shock, anti-electromagnetic interference, of course, the reliability requirements are also very high, and the same 24-hour uninterrupted long-term operation. Some automatic control applications require low latency, and some require redundant power supplies, DC24V power supplies, and so on. Main Brands:
Hersman, Moxa, Zhenxing Communications, Dongtu and many more.
There are not many home switches now, and there is no need to introduce them, common brands such as TP-link, D-link, etc.
In fact, the industrial control switch is not a standard name, but a common name. The switches used in the industrial control industry are often industrial switches.
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Industrial switches, there are industrial computers, I haven't heard of industrial switches. I'm in this industry, so I can tell you that you don't have this thing. However, there are some industrial computers that can be plugged into the module of the switch!
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Industrial computers, PLCs, and switches are all common devices in the field of industrial automation, each with different tasks and functions:
Industrial computer is a computer system responsible for controlling the industrial production process, which can perform a variety of tasks such as data processing, algorithm application, image recognition, communication protocols, etc., and provide a highly reliable and stable operating environment.
PLC (Programmable Logic Controller) is a programmable logic controller that is widely used in various industrial control systems. It is capable of performing logic operations and controlling output signals according to predefined programs and input signals to achieve control of industrial equipment, robots and production lines.
A switch is a network device, mainly used to establish a local area network (LAN) or network connection within a data center, it can send data packets** from different ports to the destination address to meet the communication needs of different devices.
These three types of equipment often need to be used together in industrial automation control systems, and the relationship between them is as follows:
The industrial computer can be connected to the PLC in different locations, and send control instructions to the PLC through pre-defined programs and algorithms, so that the industrial equipment and production line can complete the corresponding operation.
The PLC can also realize data transmission and communication between various devices and industrial computers by connecting with switches, and can even remotely monitor and control industrial equipment through the network.
Switches are usually used to establish a unified local area network to connect multiple industrial computers and PLCs to achieve smooth communication and data transmission between these devices, and ensure the stability and efficiency of industrial production processes.
Therefore, industrial computers, PLCs and switches are key equipment that cooperate and support each other, and play a vital role in industrial automation control.
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PLC (Programmable Logic Controller) is a special computer system dedicated to industrial control, which can carry out modular numerical control and process control according to the program written by the user. A switch is a device used to control a network between multiple locations, and it can control the flow of information between multiple PLCs.
The switch can be simplified to connect many PLCs to the same network in order to realize the communication between multiple PLCs, so there is a close connection between the switch and the PLC in the industrial front control system.
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What is the difference between the three configurations of industrial control network switchesCore switches: the number of ports is large, usually modular, you can freely match optical ports and Gigabit Ethernet ports, the general core switches are three-layer switches, you can set various advanced network protocols such as routing protocols ACL QoS load balancing, and the most important point is that the backplane of the core switch is much wider than that of ordinary switches, and the amount of exchange that he can accept is very large. Generally, core switches have separate engine modules, and they are active and standby.
Ordinary switches: the number of general ports is 24-48, most of the network ports are Gigabit Ethernet or 100 Gigabit Ethernet ports, the main function is to access user data or aggregate some access layer switch data, this kind of switch can be configured with VLAN simple routing protocol and some simple SNMP and other functions. The backplate is wide and the Zen pair is smaller.
The backplane bandwidth is the sum of the rates of all ports, for example, a 24-port 100 Gigabit switch has a backplane bandwidth of 24x100MB
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Regarding the meaning of program-controlled switch, the computer professional terms are explained.
Program-controlled switch is one of the most common communication management means in modern office. Make the best managers manage external incoming calls and internal outgoing calls in a group manner. Program-controlled switch equipment is generally composed of external lines and branches.
External lines refer to the total number of external lines in the access group**. Extensions are the number of extensions you have scheduled for your employees.
The difference between an industrial Ethernet switch and a commercial Ethernet switch. >>>More
For example, a company has 4 customers to form a ring network, using optical cables to form a ring network of these four customers, customer 1--- customer 2--- customer 3--- customer 4--- customer 1, set to automatic conversion, when customer 1 --- customer 2 The optical fiber cable of this line is not connected, the ring network switch will automatically jump to customer 3 to supply the network to customer 2, so as to ensure that customer 2 can continue to access the Internet.
Scold. The switch works in much the same way as the wire collector you are talking about. >>>More
The broadband network cable of the telecom is directly connected to the switch (if it is ADSL, it is also the same to connect the modem to the switch), and the host IP setting method for dial-up Internet access first: see the local connection in the network connection, click on the right health selection properties, and click the Internet Protocol (ICP IP) attribute before the icon in the notification area after the connection, and click to use the following IP address: IP address to fill in: >>>More