Classification of RS485 Ethernet converter

2023-11-08 usr News
RS485 Ethernet converter,RS232 interface,RS422 interface,RS485 interface

RS485 Ethernet converter is a common device in the Internet of Things. It is mainly used for the conversion of serial devices and network devices. It must be familiar to friends engaged in the industrial Internet of Things. So what is an RS485 Ethernet converter?


Before understanding the RS485 Ethernet converter, we need to understand what serial port.


Serial port, also known as serial data interface, is mainly used to represent the transmission of various data communication interfaces, usually refers to as the com port. It is generally divided into RS232, RS422, and RS485.


RS232 interface: full-duplex transmission is adopted, and the transmission distance is about 15 m.


RS422 interface: full-duplex transmission is adopted, and RS422 cable is composed of R+, R-, T+, T-, and GNDA. The maximum transmission distance is 1200 m.


RS485 interface: developed on the basis of RS422, half-duplex, two-wire transmission mode, consisting of two wires A and B, with a maximum transmission distance of about 1800m.


Network port: also called "RJ45 interface" or "network data connection interface". Through the RJ45 network port, data can be transmitted to the LAN.


The Ethernet to serial converter is a kind of conversion equipment, which can convert local serial data interfaces such as RS232/485/422 into network data interfaces with TCP/IP protocol so that a serial device can realize long-distance data transmission and expand the communication distance of serial devices. It can also be used for remote control and remote management of equipment.


The appearance of the RS485 Ethernet converter has brought great convenience to many fields that need remote control, data transmission, and monitoring. Through the RS485 Ethernet converter, users can use the Internet to connect computers anywhere in the world to store, manage and remotely control machinery and equipment.


Classification of Ethernet to serial converter

The Ethernet to serial converter is generally divided into the single serial port, double serial port, four serial ports, eight serial ports, sixteen serial ports, and the like according to the access quantity of different serial devices; RS485 Ethernet converter, RS232 Ethernet converter, and RS422 Ethernet converter according to the type of serial port; According to different product forms, it can be divided into pin-type RS485 Ethernet converter, patch-type RS485 Ethernet converter, device-level RS485 Ethernet converter and so on to adapt to various application scenarios.


Advantages of RS485 Ethernet converter

The RS485 Ethernet converter has the following advantages:

1) Extend the communication distance of serial devices. Through the RS485 Ethernet converter, the serial port equipment can immediately have the function of TCP/IP network interface to connect the network for data communication, thus expanding the communication distance of the serial port equipment.


2) Provide remote control and data transmission functions. Through the RS485 Ethernet converter, users can use the Internet to connect computers anywhere in the world to store, manage and remotely control machinery and equipment.


3) that data transmission efficiency is improved. RS485 Ethernet converter can convert serial port equipment into TCP/IP network interface to realize bidirectional and transparent data transmission, thus improving the efficiency of data transmission.


4) Support virtual serial port protocol. The RS485 Ethernet converter can support the virtual serial port protocol so that the user does not need to change the original PC software.


How to use the RS485 Ethernet converter

1. Device connection

 RS485 Ethernet converter interfaces are serial ports (more RS485), network ports (generally RJ45 specifications), and power interfaces (generally with different power supply ranges). Connect the serial port cable, network cable, and power supply of the RS485 Ethernet converter in turn. The network cable can be connected to the switch, router, computer, etc.


2. Basic parameter configuration

The parameters of the RS485 Ethernet converter can be modified through a Web page, AT command, and parameter configuration software. Generally, the parameters to be configured are composed of serial port parameters and network parameters. Serial port parameters include baud rate, data bit, stop bit, check bit, etc. The network parameters are typically IP address, gateway, operating mode, server address, port, and so on.


Field of application

RS485 Ethernet converter provides the function of converting serial port to network, which can convert serial port data into TCP/IP protocol data and realize bidirectional and transparent transmission between serial port and network. It is widely used in access control/attendance, industrial automation, parking lot management, remote monitoring, charging piles, high-speed toll stations, and other fields.

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