Why is RS485 Ethernet Converter Becoming Increasingly Important?

PublishTime： 2023-09-30 Article Source：usr News Author：Jinan USR IOT Technology Limited

The RS485 Ethernet converter is becoming increasingly important for the following reasons:

Compatibility of existing infrastructure: Many existing monitoring, control, and automation systems use the RS485 serial communication protocol as the data transmission standard. The RS485 Ethernet converter can connect these legacy devices to the network to communicate with modern Internet and cloud platforms without replacing the entire system, thereby protecting existing investments.

Long-distance communication support: Compared with the common RS232 interface, the RS485 serial port has stronger anti-interference capability and a longer transmission distance. RS485 Ethernet converter can extend the transmission distance of the RS485 serial port by establishing a communication bridge in LAN or Wan, which makes it possible to monitor and control remote devices.

Resource sharing and centralized management: RS485 Ethernet converter can easily realize resource sharing and centralized management after connecting sensors, actuators, and other devices to the network. Through unified control and monitoring, users can remotely manage and configure multiple RS485 devices, which improves operational efficiency and flexibility.

Data collection and analysis: RS485 Ethernet converter can be used to collect data from sensors, instruments, and other equipment, and send them to the back-end cloud platform for data analysis and processing. This provides enterprises with the ability of real-time monitoring and operation and maintenance management, as well as the basis of intelligent decision-making and optimization.

User customizability: The RS485 Ethernet converter provides flexible expansion interfaces and configuration options, allowing users to customize according to their needs. Users can select the serial port type, rate, data format, and other parameters according to specific industrial protocols and communication requirements to meet the needs of different application scenarios.

RS485 Ethernet converter plays an indispensable role in the modern Internet of Things and intelligent systems. It is compatible with existing infrastructure, supports long-distance communication, realizes resource sharing and centralized management, and provides data acquisition and analysis functions. With the development of Internet of Things technology and the expansion of its application scope, the importance of the RS485 Ethernet converter has become increasingly prominent.

Why should the RS485 bus be connected hand in hand

RS485 does not support arbitrary topology, mainly because arbitrary topology will produce a large number of standing waves and reflections at the branch. This is mainly due to the impedance discontinuity.

Impedance discontinuity: When a signal suddenly encounters a cable with little or no impedance at the end of the transmission line, the signal will cause reflection at this point. The principle of signal reflection is similar to the reflection of light from one medium into another. To eliminate this reflection, a terminating resistor of the same size as the characteristic impedance of the cable must be connected across the end of the cable to make the impedance of the cable continuous. Because the transmission of signals on the cable is bidirectional, a termination resistor of the same size can be connected across the other end of the communication cable.

Impedance mismatch: Another cause of signal reflection is the impedance mismatch between the data transceiver and the transmission cable. In high-frequency circuits, when the frequency of the signal is very high, the wavelength of the signal is very short. When the wavelength is as short as the length of the transmission line, the reflected signal superimposed on the original signal will change the shape of the original signal. If the characteristic impedance of the transmission line does not match the load impedance, reflections occur at the load. The reflection caused by this reason is mainly manifested in the confusion of the whole network data when the communication line is in idle mode.

When the signal is transmitted to the end of the bus, the transient impedance changes suddenly (taking RSM485ECHT as an example, the impedance changes from 120Ω to 96kΩ), which causes the signal to be reflected and affects the quality of the signal.

When power consumption is required and the communication distance is long, it is recommended to select a bus that supports any topology, such as POWERBUS, MBUS, etc.

+1 Like
Add to Favorites

This document is provided by Sekorm Platform for VIP exclusive service. The copyright is owned by Sekorm. Without authorization, any medias, websites or individual are not allowed to reprint. When authorizing the reprint, the link of www.sekorm.com must be indicated.

Recommend

What is the function of a Ethernet to RS485 Converter and how to use it

2023-08-11 - Technical Discussion The essence of the so-called Ethernet to RS485 Converter is a protocol conversion device. Because of its participation, the RS-232/422/485 serial port is converted into a TCP/IP network interface, which completes the two-way transparent transmission of data between the serial port and the network interface.

The Working Principle and Use of RS485 Signal Conversion to Ethernet

2023-09-01 - Technical Discussion RS485 serial bus is widely used in the communication distance from tens of meters to several kilometers. RS485 uses balanced transmission and differential reception, so it has the ability to reject common mode interference.

RS485 to Ethernet Converter: The Digital Leap in Traditional Industries

2024-06-28 - Technical Discussion The RS485 to Ethernet Converter, as a crucial technology enabling the digital leap in traditional industries, is bringing profound changes. By achieving intelligent and efficient data conversion and transmission, it empowers serial devices, once limited to short-distance, low-speed communication, with networking capabilities for remote monitoring, control, and management. This not only improves production efficiency and management levels but also reduces operational costs and security risks.

Explosion-Proof Safety Features of RS485 to Ethernet Converter in Oil ＆ Gas Industry: Lifeguards from Field to Cloud

2025-04-02 - Industry News In the oil and gas industry‘s digital transformation, RS485 to Ethernet Converter serve as both “frontline data collectors“ and “safety line goalkeepers.“ When discussing explosion-proof features, we‘re essentially using technology to combat the harsh laws of the physical world. Choosing battle-tested equipment adds double insurance to production safety.

Steps for PLC to Connect RS485 Ethernet Converter

2024-09-19 - Design Article PLC connection RS485 Ethernet Converter is a basic and important work in industrial IoT applications. Through the detailed explanation in this article, I believe readers have a clear understanding of the connection steps and precautions. In practical operations, adjustments and optimizations should be made flexibly based on the specifications of specific equipment and the network environment.

USR-N540 Serial to Ethernet Converter

2024/11/6 - Datasheet

串行到以太网转换器,SERIAL TO ETHERNET CONVERTER,终极串行转换器,ULTIMATE SERIAL CONVERTER,USR-N540

More Version(s)

RS485 Ethernet Converter Function Depth Analysis

2024-10-31 - Technical Discussion Smart Agriculture:Data from farmland sensors and irrigation equipment is transmitted in real-time to the cloud platform via a serial server, assisting farmers in achieving precise planting and management. RS485 ethernet converter has a wide application prospect in the field of industrial Internet of Things. By deeply analyzing its functional characteristics and accurately selecting the type according to the specific needs of the application scenario, the advantages of the serial server can be fully utilized to improve the utilization rate and operation and maintenance efficiency of the device.

The Role and Purpose of a RS485 Ethernet Converter?

2023-09-27 - Design Article The RS485 ethernet converter has a broad application prospect in industrial automation. By converting traditional serial communication into network communication, remote management, data acquisition, and monitoring functions can be realized, and production efficiency and equipment stability are improved.

From Functional Requirements to Serial Server Selection:

2024-10-30 - Design Article From functional requirements to serial server selection: creating an efficient data transmission channelWhen building an IIoT system, an efficient data transmission channel is the key to ensuring the stable operation and real-time response of the entire system. The serial server, especially the RS485 Ethernet converter, is a bridge connecting traditional serial devices and modern network devices. Its selection and application are crucial for the efficiency and reliability of data transmission.

The Key Differences Between RS485 Ethernet Converter and Industrial Switch

2024-06-20 - Technical Discussion RS485 ethernet converter and Industrial Switch play distinct roles in Industrial IoT. RS485 ethernet converter act as the “interpreter,“ converting data between serial devices and TCP/IP networks, while Industrial Switch function as the “transport hub,“ facilitating data exchange and traffic control within the network.

The Role of RS485 Ethernet Converter in Building Automation Systems

2024-05-23 - Technical Discussion With the rapid development of Industrial Internet of Things (IIoT) technology, traditional building automation systems are facing unprecedented opportunities for transformation. In this process, RS485 Ethernet Converter, as bridges connecting traditional serial devices to modern networks, play a crucial role. This article will elaborate on the positive impact of RS485 Ethernet Converter on building automation systems.

How to Choose High-quality RS485 Ethernet Converter

2024-10-30 - Design Article Choosing a high-quality serial server requires comprehensive consideration from multiple aspects such as brand awareness and industry application experience, serial communication standards and network interface performance, data security and encryption, device stability and reliability, interface selection and scalability, as well as installation and deployment. By comprehensively analyzing these factors, you will be able to choose a serial server that meets your needs and provides solid technical support for industrial IoT applications.

The Difference Between RS485 Ethernet Converter and 4G Lte Modem, and How to Choose

2023-09-13 - Technical Discussion RS485 ethernet converterand 4G lte modem are two common serial devices, which have some differences in functions and application scenarios. This artical introduces the differences in detail, and tells how to choose.

Application of industrial automation base on RS485 ethernet converter and PLC

2023-04-15 - Application solution Article Industrial automation application refers to a production management mode that uses modern information technology to automatically manage, optimize and intelligently control industrial production processes, improve production efficiency and quality, and reduce production costs and labor intensity.

How Does the RS485 Ethernet Converter Adapt to the Development Trend of Iindustrial IoT

2024-10-28 - Technical Discussion The following will explore in detail how RS485 Ethernet Converter adapts to the development trend of industrial Internet of Things.