The serial port server parses the data packet from the TCP/IP protocol into a serial data stream. Conversely, the serial port data stream can also be converted into a TCP/IP protocol data packet to implement data network transmission. It can connect multiple serial devices and can select and process the serial data stream, convert the data of the existing TTL serial port or RS232/RS485/RS422 interface into the data of the IP port, so that the traditional serial data can be sent. The popular IP channel does not need to prematurely eliminate the original equipment without Ethernet module, thereby improving the utilization of existing equipment, saving investment and simplifying wiring. In terms of data processing, the serial server completes a connection-oriented TTL serial port or. RS232/RS485/RS422 link and storage control for communication data between connectionless Ethernet, the system processes various data, processes the serial data stream from the serial device, and performs format conversion, making it possible to be in the ether A data frame propagated in the network; a data frame that is judged from the Ethernet and converted into a serial device that responds to the serial data. In practical applications, the serial server is completed by mapping the Ethernet interface of the TCP/IP protocol to a standard serial port under the Windows operating system. The application can send and receive and control it like a normal serial port. For example, there are two general computers. Serial ports COM1 and COM2 can be mapped to COM3, COM4, ​​COM5, etc. through the serial port server. The Serial Networking Server product provides a solution for accessing industrial equipment directly over the network. Traditional serial devices can therefore be converted to Ethernet devices that can be monitored and controlled from a local area network or even the Internet. XUNWEI's serial server provides different configuration and specification features to meet the needs of specific applications, including Modbus protocol conversion, TCP, UDP operating modes. The serial port networking server is the easiest way to re-engineer existing serial devices, including PLCs, CNC machine tools, instrumentation, sensors, transceivers, and other serial devices. In the field of automation, there are thousands of sensors, detectors, PLCs, card readers or other devices that are interconnected to form a control network that acts as a tool for managing data in information systems. The communication interfaces most commonly used to connect these devices are RS232 and RS422/RS485. Network architectures such as bus Ethernet Internet have been widely adopted in the automation industry, replacing traditional serial communication. Mainstream for automated system communication. Under this trend, the maturity is represented by TCP/IP and Ethernet. Network technology is gradually being applied to various automation systems to connect and control all devices. . Manufactured for all equipment. For business and equipment users, looking for an economical and fast solution that allows existing devices to be used immediately and becomes an important topic for competing business opportunities. It allows traditional TTL serial or RS232/485/422 devices to be instantly converted into network devices with a network interface. Direct connection mode: The so-called direct connection means that the network cable port on the computer is directly connected to the Ethernet port on the serial port server. The networking mode is simple in wiring, and can realize long-distance transmission and long-distance transmission. This is because the distance from the computer to the serial server increases. The production of the network cable is the same as the cable connection for general Internet access. The virtual serial port management software maps the serial port on the serial server to COM3, COM4, ​​etc., and can operate like a normal serial port. For the serial server, if you add the MAX485 chip to its TTL serial port, it will become RS422 or RS485, and you can also map it to COM3 and COM4. Etc., so for the host computer, no matter what serial port mode the serial port server outputs, its operation mode is the same as that of the COM1 and COM2 ports of the computer itself, which greatly simplifies the programming workload of the host computer. However, the serial port server is really The advantages and value of the performance is not reflected in the direct connection application, it is an important purpose to connect the device to the Ethernet. Ethernet connection mode: Connect the serial device to the Ethernet through the serial port server. The wiring method is very simple. You only need to connect the serial server to the router or switch, and set the IP of the serial server. Address (XUNWEI brand products default to dynamically open DHCP, can automatically obtain an IP address), the serial server can become a node on the Ethernet, so that the device connected to the serial server is connected to the Ethernet, through the group The web mode is capable of different devices that will have different forms of serial ports. (such as TTL, RS232, RS485, and RS422), connected to the Ethernet to implement heterogeneous networking. This networking mode can connect the entire company's devices to the network. In addition to the switch and router extensions, you can also use industrial Ethernet switches to expand different serial port servers to implement flexible devices. Network, the staff can monitor the equipment according to the authority and level. From the company leader, chief engineer, technical person in charge to the general operator, the system can monitor the system within its own authority, realize the sharing of network resources and all Centralized management of the system to build a platform for network manufacturing technology. Wireless Charger Car Phone Holder Wireless Charger Car Phone Holder,In Car Phone Holder Wireless Charger,Car Phone Holder And Charger,Phone Car Mount With Wireless Charger Ningbo Luke Automotive Supplies Ltd. , https://www.nbluke.com
Serial server concept