Nowadays, with the continuous development of Internet of Things technology, the speed of updating various interfaces is very fast.The main function of RS485 Ethernet converter is to provide the function of converting serial port to TCP/IP network interface.It can convert RS232/485/422 serial port into TCP/IP network interface,The bidirectional transparent data transmission between RS232/485/422 serial port and TCP/IP network interface is realized.O that the serial port equipment can immediately have the function of a TCP/IP network interface and is connected with a network for data communication,The communication distance of the serial port equipment is greatly expanded.
Features of RS485 Ethernet converter:
It integrates TCP, UDP, ARP, HTTP, ICMP, DNS, Socket5 and other protocols, and can support static IP and dynamic IP.Supports gateways and proxy servers to transmit data over the Internet.
The RS232/485/422 serial port is available for selection, the RS485/RS422 serial port data is automatically controlled, and a Chinese and English setting wizard is provided for convenient setting.The virtual serial port interface between the virtual serial port program and the original system is provided, and the original system only needs to change the serial port setting without any change.
One or more virtual serial ports and serial port program interfaces are established on a computer,One or more RS485 Ethernet converters are managed through the network, so that the serial device connected with the virtual serial port exchanges data with the computer.
A network program on a computer or a communication device directly based on WINSOCKET is directly connected with the RS485 Ethernet converter through TCP,O as to carry out bidirectional and transparent data transmission with the corresponding serial port equipment.
The RS485 Ethernet converter is used in pairs, and one client initiates/establishes a TCP connection with the other server.Two serial devices can transmit data transparently through TCP/IP network directly.
As a server, the RS485 Ethernet converter waits for other network devices to initiate TCP connections with it.It is applicable to the situation that the serial device is completely controlled by other devices and passively receives/sends data.
The RS485 Ethernet converter, as a client, initiatively initiates a TCP connection to other network devices,It is applicable to the situation that the serial device is actively connected to the main control device.
Access control and attendance system is believed to have been touched by everyone in life and work. As a digital management system,Nowadays, it is widely used to control the access and attendance of employees, which is of positive significance to the management of the company.
Because RS485 bus is simple and easy to use, a considerable part of the data transmission lines in the access control and attendance system use RS485 bus as the transmission line.For office areas located in the same building, it is sufficient to use the RS485 bus.But once different office buildings or even office areas in different cities are managed in a unified way, data transmission must be carried out through the Internet.
As the technology becomes more and more mature, the application of RS232/RS485 converter is more and more extensive.For example, automatic banking system, access control and attendance system, POS charging system, food sales system, computer room monitoring system and building monitoring systemSystem, power monitoring system, etc.
