Ethernet to RS485 Converter for Multiple RS485 Devices

时间： 2023-11-16 来源：世强

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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. Coupled with the high sensitivity of the bus transceiver, which can detect voltages as low as 200 mV, the transmitted signal can be recovered from kilometers away.

RS485 adopts a half-duplex working mode, and only one point can be in the sending state at any time, so the sending circuit must be controlled by the enable signal. RS485 signal to Ethernet signal, that is, Ethernet to RS485 Converter, has its figure in industrial, security, remote meter reading, and other scenarios, using its signal conversion function to achieve signal conversion and improve the network.

How it works

RS485 to Ethernet provides the function of converting serial port to network, which can convert RS485 serial port to TCP/IP network interface and realize bidirectional and transparent data transmission between RS485 serial port and TCP/IP network interface. The serial device can immediately have the function of a TCP/IP network interface, connect the network for data communication, and expand the communication distance of the serial device.

RS485 is a differential signal negative logic, + 2V ~ + 6V represents "1", and -2V ~ -6V represents "0". RS485 communication interface is divided into two types, one is a two-wire system, and the other is a four-wire system. The two-wire system is a half-duplex communication mode, and the four-wire system is a full-duplex communication mode. RS485 communication interface, strong anti-interference ability, good anti-noise interference. In industrial control, the RS485 bus is widely used because of its simple interface, convenient networking, long transmission distance, and other characteristics.

The RS485 interface is a half-duplex data communication mode. The half-duplex network composed of the interface is generally a two-wire system in use, and the shielded twisted pair is often used for transmission. Such a wiring mode is a bus-type topology, and 32 nodes can be connected to the same bus at most. RS485 in the communication network uses a master with multiple slaves. In most cases, a simple pair of twisted pairs is used to connect the two ends of the "A" and "B" "of each interface when connecting RS485 communication. The RS485 interface connector adopts the 9-core socket head of DB-9, the RS485 interface of the intelligent terminal adopts DB-9, and the keyboard interface RS4485 connected with the keyboard adopts DB-9.

Benefits of Ethernet to RS485 Converter

The wiring is simple: only 2 wires are needed, and the shielded wire interface of the network cable is adopted;

Long communication distance: differential mode communication is adopted, and the communication distance is long;

Multi-machine networking: RS485 supports mounting multiple terminals online, and realizes multi-machine communication by means of query-response;

Solution of Ethernet to RS485 Converter

RS485 to Ethernet hardware converter is divided into two types: Ethernet to RS485 Converter and serial networking module.

Ethernet to RS485 Converter realizes the conversion of the RS485 interface into a TCP/IP interface, and with the use of a virtual serial port driver on the computer side, the TCP/IP connection is virtually converted into a serial port again.

The virtual serial port driver creates virtual serial port numbers such as COM5 and COM6 in the driver layer of the computer and binds the remote Ethernet to RS485 Converter with the virtual serial port to realize communication.

After using the hardware and software system of the solution, the Rs485 device is equivalent to the expansion of the network, and the original hardware and software programs do not need to be modified.

Basic functions of RS485 Ethernet to RS485 Converter

Basic functions: RS485 serial port to Ethernet, bidirectional transparent transmission, support Modbus forwarding;

Guide rail installation: exquisite volume, standard 35mm guide rail installation, easy layout, and installation, convenient for later maintenance;

The operating mode of Ethernet to RS485 Converter:

TCP Server: As a Server, the device can be set with two TCP clients to perform transparent data transmission with the device at the same time, so as to solve the problem of simultaneous communication between multiple clients and the device. It can also be used as a standby network channel for switching communication;

TCP Client: As a Client, the device can be set to face four server addresses at the same time, actively initiate connections to the server, and as a Client, support the setting of custom heartbeat packets and handshake packets;

UDP Server: as the Server end, the device supports multiple UDP clients to transmit data with the device;

UDP Client: as the Client end, the device actively communicates with the UDP Server and transparently transmits data with the RS232 serial port;

UDP multicast: as the Client end, the device can realize the mutual communication between the devices in the multicast;

Http server: as the HTTP server, the device supports HTTP communication in the local area network through HTTP (get);

Ethernet to RS485 Converter for multiple RS485 devices

For the problem of connecting multiple 485 devices to one Ethernet to RS485 Converter, you can use multiple serials to Ethernet modules. Here is one possible solution:

1. Obtain an Ethernet to RS485 Converter with multiple serial interfaces. Such servers typically have an Ethernet connection and support multiple serial ports.

2. Connect each 485 device to a separate serial port through an adapter or dongle. These adapters convert 485 signals to serial signals.

3. Configure the Ethernet to RS485 Converter to map each serial interface to its corresponding 485 device.

4. Connect the Ethernet to RS485 Converter to your local area network or the Internet, ensuring that it has network communication capabilities with other devices.

In this way, you can manage multiple 485 devices simultaneously with one Ethernet to RS485 Converter. You can monitor and control each device by accessing the Ethernet to RS485 Converter through the network.

Application of RS485 Ethernet to RS485 Converter

RS485 Ethernet to RS485 Converter is widely used in various industrial automation and Internet of Things applications. Here are some common scenarios:

1. Remote monitoring and control: RS485 Ethernet to RS485 Converter can connect remote devices to LAN or Internet through the RS485 interface to realize remote monitoring and control of these devices. For example, Ethernet to RS485 Converter can be used to connect sensors, PLCs, meters, and other devices to a central monitoring system to monitor the status of the devices in real-time and operate and set them remotely.

2. Data acquisition and recording: RS485 Ethernet to RS485 Converter can connect multiple data acquisition devices (such as temperature sensors, humidity sensors, flowmeters, etc.) to the server through the RS485 interface to achieve centralized data acquisition and recording. This data can be used for analysis, report generation, and remote administration.

3. Device access to the cloud platform: Through the RS485 Ethernet to RS485 Converter, the device can be connected to the cloud platform to realize remote monitoring and management of the device. This can help realize the remote maintenance, upgrade, and fault diagnosis of the equipment, and improve the operation efficiency and reliability of the equipment.

4. Remote instrument display and control: through RS485Ethernet to RS485 Converter, instrument equipment (such as instrument display screen, control panel, etc.) can be connected to the remote terminal to realize remote instrument display and control. This is particularly useful in certain applications where real-time monitoring and operation of equipment is required.

5. Industrial automation system integration: RS485 Ethernet to RS485 Converter can be used as the core of industrial automation system to connect different types of equipment (such as PLC, human-machine interface, sensors, etc.) through RS485 interface, and exchange data and communicate with equipment. Realize the integration and control of the whole system.

Ethernet to RS485 Converter provides flexible and reliable serial port connection and enables remote management and communication via Ethernet. They are widely used in industrial environments to help improve productivity, reduce maintenance costs, and enable intelligent and automated control.

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本文由叫我大表哥吧转载自世强，原文标题为:MULTIPLE RS485 DEVICES USING ONE ETHERNET TO RS485 CONVERTER，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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10.0,1491940000,IE-SW-SL26M-24TX-2GC-LV,2715670000,1433940020,IE-SW-VL16-16TX,2637360000,IE-C5DD4UG0030A2DA2D-E,1025940100,IE-PI-RJ45-FH-P-1.6,2584910000,IE-SW-EL08-8POE,IE-FM5D2UE0100MSD0SD0X,1433940005,IE-C5DB4RE0100MCSMCA-E,1450750000,IE-C6FP8LD0030M40W40-D,9002660000,1963460000,IE-BS-M12X-180-P-TH,IE-C6FP8LV0015M40M40-V,1518080000,8946930000,2584680000,1433940010,IE-C5DS4VG0050A60A60-E,2652480000,CABTITE BP 20MM PA,IE-FCI-PWB-RCBO,IE-OM-V01M-K21-2S,IE-FM6Z2LO0005MST0ST0-X,IE-C6FP8LM0020M40M40-M,1312160150,IE-C6KS8VG0005XCSXCS-E,IE-FC-KEY2,2563810250,1920000000,IE-BIC-HYB-P-0,5-300,IE-C6FP8LR0015M40M40-R,2664840000,IE-FM6Z2LO0001MSD0SD0-X,2584570000,IE-FSMZ2LY0003MLD0LD0-X,2583780000,IE-C6FP8LO0020M40M40-O,CABTITE BP 8MM PA,1012370000,1433980100,1993550030,2003370000,IE-C5DE4UP0030PCSXXX-E,2060000000,1376510200,8813090000,2682530000,1449420250,CABTITE CR 16/8 EMV,IE-SW-VL08MT-6TX-2ST,IE-SW-VL08MT-6TX-2SCS,1285830000,IE-C5DD4UG0075DSAXXX-E,IE-SW-BL06T-2TX-4POE,IE-FM6D2UE0050MSD0SD0X,IE-SR-6GT-LAN,2778960000,IE-C6FP8LD0100M40V40-D,1510000000,ERME 630 PDT,IE-SW-BL06-2TX-4POE,8876430010,IE-CS-2TX-1RS232/485,2664860000,IE-C5DE4UP0015PCAPCA-E,IE-TO-SCD-MM,CABTITE SE 6-7 SML GY,IE-FM5Z2LO0005MLD0LD0-X,TM 4/12 HF/HB,2584840000,IE-C6FP8LD0020X40X40-Y,9204790000,1993550018,1993550015,1251590050,9205020000,SM 27/18 K MC NE GR,1450840000,2704480000,IE-C5DD4UG0015A60A60-E,IE-SW-VL08MT-6TX-2SC,1010840050,2706150030,1993550010,IE-C6FP8LB0015M40M40-B,CABTITE SE 22-23 LRG GY,1251590015,IE-C5DD4UG0030DCADSA-E,2701550150,1251580250,IE-FM6Z2LO0005DST0ST0-X,1251590010,SAISM-4/8S-M12-4P D-COD,2763430000,1962720000,2717740075,IE-MC-VL-1TX-1SCS,1061820000,IE-FC-SFM-KNOB-4X,2795120000,IE-PS-V01M-RJ45-TH-BP,2673710000,1251590020,2706150015,8876430030,1350000000,2583400000,IE-USB-A-MICRO-1.8M,2781880000,2770000000,1963730000,2660000000,2583960000,1450570000,2583830000,1240990000,IE-SW-VL08T-8GT,1251590030,8813340000,SEE ESD 125,IE-BS-V01M-SCRJ-SM,1992900000,SEE ESD 120,IE-C6HD8UG0075E40XCS-E,IE-FPOZ2EE0001MSJ0SJ0-X,IE-C5DS4VG0015A60A60-E,IE-TO-LCD-SM,1018790000,IE-SW-EL18-16TX-2GC,1312160100,IE-FPOD2UG-500,9014050000,2763560000,8876450050,1286570000,IE-C5DD4UG0200A20A20-E,IE-C5DS4VG0075A60A60-E,2751270000,1241420000,1543690000,1680000000,2500710000,IE-P-IP67,IE-CT-LC-GOF,1487980000,ERME 66 PDT,2717790300,1251590005,1012570000,IE-PS-V01P-RJ45-FH,1251590002,1730560001,IE-C5IT4UG0020B2EB2E-X,2584480000,IE-C6FP8LD0020M40L40-D,1010840015,2584050000,SAISWC-D-18/28-4/9CG,IE-C5DD4UG0015MCSA20-E,2535980000,2706150075,IE-PS-V14M-RJ45-FH-P,1165900150,1058130000,IE-BSC-V14M-SCRJ-SM-C,IE-C6FP8LD0010M40R40-D,9013980000,CABTITE SE 4/3-4 SML BK,2583760000,IE-FC-IP-2ST/2D9,2584820000,1966300000,1059770100,1993550005,1059340100,1421710200,1251580200,1504280000,1993550003,CABTITE BP 13MM PA,1433960100,IE-TO-SCD-SM,SAISP-M-4D

选型指南 - WEIDMUELLER - Version 2021 - 08/2021 PDF 英文下载

P-DUKE Introduces Efficient 300W DC/DC Converters for Industrial, Railway and Challenging Environments

The HAE300W series of DC/DC converters from P-DUKE introduces a substantial increase in output power capacity, reaching up to 300W, all within a compact half-brick design. This series is engineered to fulfill the stringent requirements of industrial and railway (rolling stock) applications.

产品发布时间 : 2024-11-09

【选型】Weidmueller（魏德米勒）测量和监控系统产品选型指南

目录- Industrial IoT with measuring and monitoring systems Monitoring systems Energy measurement & analysis devices Overview Energy Meter Energy analyser Energy & Data Logger u-sense vibration/ energy drives IoT-terminal Current transformer Retrofitting energy management solutions Peripherie Energy Management Automation kit Industrial Ethernet product line Energy Suite ecoExplorer go Software u-create system u-link system service and support Measuring & monitoring systems order number index

型号- KCMA-18-150-1A-1VA-1,KCMA-28-300-5A-1.5VA-1,2753040000,KCMA-18-250-1A-4VA-3,POWER MONITOR BRACKET,UR20-2CNT-100,2420940000,2420000000,2603440000,2420780000,2090000000,KCMA-42-800-5A-2.5VA-0.5,2476450000,KCMA-18-150-5A-1VA-1,8000000000,KCMA-42-400-1A-2.5VA-0.5,1470000000,2656280000,2680220000,KCMA-42-250-1A-2.5VA-1,2540870000,ENERGY METER 610-PB-230,CMA-31-60-5A-1,25VA-1,POWER MONITOR,KCMA-42-400-5A-5VA-1,1334990000,2753200000,2716650000,1350930000,KCMA-42-300-1A-2.5VA-1,PNP-U-MOD-TCP,CMA-101-2500-5A-10VA-0,5,BATTERY-CR1220-3V,KCMA-32-400-5A-5VA-1,CMA-RCM-DACT-120,2665170000,CMA-CTM-7-64-1A-0.5VA-1,KCMA 5-500-5A-2.5VA-0.5,PM 2.7/2.6 MC NE WS,1339920000,KCMA-32-400-1A-5VA-1,2753430000,UR20-PK-1315170000-SP,UR20-PK-2476450000-SP,2500870000,KCMA-28-200-1A-0.3VA-1,8000028952,2728140000,8000028950,8000028951,1347290000,KCMA-8-1000-5A-5VA-0.5,1430000000,KCMA-8-1500-5A-15VA1,2495610000,UV20-B-IPC-2001.02,UV20-B-IPC-2001.01,KCMA-42-1000-5A-2.5VA-0.5,UV20-B-IPC-2001.03,KCMA-8-2500-5A-15VA1,RCMA-B22-D175-4.5,UR20-BM-SP,2684410000,CMA-31-400-5A-5VA-0,5,2665810000,2665800000,2753210000,2716660000,CMA-31-250-5A-5VA-1,1562270000,EM-CONNECTIVITY-BOX 144,LST CT-BLOCK,POWER MONITOR 51A,2600000000,2656270000,2603450000,ENERGY METER 750-24,KCMA-18-150-1A-2VA-3,1310000000,1320000000,KCMA 5-600-5A-2.5VA-0.5,CMA-31-250-5A-5VA-0,5,KCMA-28-500-5A-3VA-1,KCMA-42-600-1A-2.5VA-0.5,KCMA-28-500-1A-1VA-0.5,2650000000,CMA-61-1500-5A-5VA-0,5,2540000000,2753030000,2680150000,2680210000,2728210000,2420950000,2540860000,CMA-51-1250-5A-5VA-0,5,KCMA-8-2000-5A-15VA1,KCMA-8-4000-5A-15VA1,2420770000,KCMA-18-200-1A-1.5VA-1,ENERGY METER SEAL L144,ENERGY METER D370-CBM,CMA-81-2000-5A-10VA-0,5,KCMA-18-200-1A-3VA-3,2710000000,UR20-EBK-ACC,2753190000,2753360000,UR20-EM-2007420000-SP,2421030000,2500880000,2680000000,ENERGY ANALYSER 550-24,PNP-32-MOD-TCP,CMA-31-300-5A-5VA-0,5,IT20-ATDIORO-NB-P,1315590000,2684400000,2753420000,UC20-WL2000-AC,2680160000,2060000000,2680240000,2091060000,SD-CARD-8GB,2728190000,1347150000,2000000000,UC20-SL2000-OLAC-EC,2420760000,ENERGY METER 700-PN-24,THM UR20 WS,ENERGY METER 610-230,UV20-B-IPC-1000.01,2753140000,KCMA-32-600-1A-5VA-1,2676380000,2420960000,CMA-31-750-5A-5VA-1,CMA-41-1000-5A-5VA-1,ENERGY LOGGER S0 MODULE,RCMA-B22-D175-1.5,2490000000,2446170000,2489780000,CMA-31-200-5A-5VA-1,1482050000,2540900000,2753290000,CMA-101-2500-5A-10VA-1,CMA-81-2000-5A-10VA-1,UR20-FBC-MOD-TCP-V2,UR20-PK-1315180000-SP,ENERGY ANALYSER 750-24,ENERGY METER 525-230,ENERGY METER 520-24,2753260000,UR20-EM-1315700000-SP,UR20-EM-1315590000-SP,2660130000,KCMA-28-300-1A-1.5VA-1,2433060000,2605350000,2752990000,1420000000,1350000000,ENERGY ANALYSER D550-24,IE-USB-A-MICRO-1.8M,PNP-63-MOD-TCP,1484030000,2660000000,2753110000,2753410000,2485280000,2656290000,2680190000,1482020000,RCMA-B22-D125-1.5,2603430000,KCMA-8-750-5A-2VA1,2680170000,2753130000,1341630000,2680230000,CMA-31-200-5A-2,5VA-0,5,CMA-CTM-7-50-1A-0.4VA-1,2753050000,KCMA 5-1000-5A-5VA-0.5,1487980000,2420750000,2728180000,2593400000,2534130000,KCMA-8-1000-5A-10VA1,1482040000,2670000000,2605360000,2753280000,2593350000,ENERGY METER BRACKET S2,2437370000,1346430000,KCMA-8-3000-5A-15VA1,2593340000,CMA-31-500-5A-5VA-1,KCMA-42-800-1A-2.5VA-0.5,2500860000,2556010000,ENERGY METER 610-PB-24,KCMA-18-50-1A-1VA-3,2500000000,UV20-B-IPC-1011.02,UV20-B-IPC-1011.01,2752980000,1315180000,ENERGY ANALYSER 550,2593410000,2720000000,2433070000,2420970000,1482030000,2753270000,2540830000,2753060000,KCMA-44-800-5A-5VA-1,1346640000,1484040000,2603420000,IOT-GW30,2753120000,2753390000,1429910000,EM-CONNECTIVITY-BOX TS,1423550000,KCMA-44-750-5A-5VA-1,1346440000,KCMA-18-250-5A-1VA-0.5,KCMA-RCM-812D,1482070000,CMA-CTM-7-32-1A-0.2VA-1,2728090000,CMA-51-1250-5A-5VA-1,2728100000,U-CREATE-STUDIO,KCMA-18-100-1A-1,25VA-3,1490000000,2680180000,KCMA-28-400-5A-2.5VA-1,2753400000,RCMA-B22-D125-4.5,2728170000,KCMA-42-500-5A-5VA-1,KCMA-28-250-1A-1VA-1,KCMA-28-250-5A-1VA-1,ENERGY METER SEAL L96-2,2753160000,1315170000,KCMA-44-1000-5A-5VA-1,2753000000,1334950000,1434230000,KCMA-18-250-1A-1,5VA-1,2420980000,1482000000,KCMA-8-600-5A-2.5VA-0.5,2740000000,KCMA-RCM-58D,2593360000,UC20-WL2000-IOT,KCMA-8-500-5A-5VA1,UR20-4AI-RTD-DIAG,2753070000,KCMA-42-750-5A-2.5VA-0.5,KCMA-18-125-1A-1,5VA-3,2753240000,KCMA-RCM-23D,2420910000,CMA-61-1500-5A-5VA-1,2550000000,2590000000,2420740000,2425500000,2433040000,2440000000,2480000000,1341610000,2680250000,UR20-PK-1394390000-SP,2602580000,UR20-8DI-P-2W,ENERGY METER 520-230,2495630000,KCMA 5-400-5A-1VA-0.5,CMA-31-400-5A-5VA-1,2630000000,2638920000,2676370000,ENERGY METER BRACKET L1,1483050000,2728160000,2753150000,EM-CONNECTIVITY-BOX 96,1340000000,KOSM BHZ5.00,2420890000,PNP-16-MOD-TCP,2540910000,UR20-PK-2007420000-SP,1346610000,2540850000,2420990000,KCMA-28-400-1A-2.5VA-1,RCMC-5000-AO-P,UR20-EM-1315180000-SP,2556030000,1560000000,2540920000,2728110000,2753100000,KCMA-8-250-5A-1.5VA1,PM 2.7/2.6 MC SDR,ESO UR20 DIN A4 WS,KCMA-18-125-1A-0.5VA-1,2593370000,2007420000,CMA-31-600-5A-5VA-1,2420900000,2753080

选型指南 - WEIDMUELLER - Version 2021 - 12/2020 PDF 英文下载

Innovision Semiconductor‘s Highly Integrated Parallel Synchronous Buck Converter IS6608A Won the “2022 Most Valuable Market Project Award“

Innovision Semiconductor‘s highly integrated parallel synchronous buck converter IS6608A has won the “2022 Most Valuable Market Project Award“. IS6608A adopts multiphase parallel technology and can support up to 8 chips in parallel to achieve a peak output current of 280A.

产品发布时间 : 2023-10-31

China IXXYY Series DC-DC Converter Is Used in A Variety of Applications Including Telecommunications, Automotive, Industrial

The IXXYY Series DC-DC Converter is a high-performance electronic device used to convert direct current (DC) voltage from one level to another. With a wide range of input and output voltage options, this converter is capable of being used in a variety of applications, including telecommunications, automotive, industrial, and medical industries.

产品发布时间 : 2024-05-18

How to Choose High-quality RS485 Ethernet Converter

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.

设计经验发布时间 : 2024-10-30

Power Railway and Industrial Equipment Efficiently with SIP-8 10W DC/DC Converters P-DUKE RDL10W

P-DUKE has expanded its lineup of SIP-8 package railway-specific DC/DC converters, now delivering up to 10W of output power. The RDL10W series can be applied in automated driving systems, signal processing units, data recording, PLCs, HMIs and DCS.

产品发布时间 : 2024-06-27

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

The following will explore in detail how RS485 Ethernet Converter adapts to the development trend of industrial Internet of Things.

技术探讨发布时间 : 2024-10-28

Industrial AC-DC Converter Made in China: Efficient Power Conversion for Heavy-duty Applications

Industrial AC-DC converters are essential components in heavy-duty applications, ensuring efficient power conversion from AC to DC. Through their working principles, these converters enable a reliable and stable power supply, enhancing the performance and longevity of critical equipment.

原厂动态发布时间 : 2023-10-30

Designing an Efficient Industrial AC-DC Converter

In modern industrial applications, AC-DC converters play a significant role in transforming electrical power between different voltage levels and frequencies. These converters are essential for powering a wide range of devices, from small electronic circuits to heavy machinery. With the increasing demand for more efficient and reliable power supplies, it is essential to design AC-DC converters that can meet the requirements of industrial applications.

设计经验发布时间 : 2024-04-15

Key Role and Selection Points of Rs485 Ethernet Converter in Industrial Iot Projects

In the IIoT project, the RS485 ethernet converter plays a crucial role. It is not only a bridge between traditional serial communication and modern network technology, but also a core component for efficient and reliable data exchange between devices. The following will detail the key role of RS485 ethernet converter in IIoT projects and the key points of selection.

技术探讨发布时间 : 2024-10-27