博文

目前显示的是 一月, 2019的博文

USRIOT Invite You to Embedded World 2019 Exhibition & Conference

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From 26-28 February 2019, Embedded World 2019 Exhibition & Conference will be opened at Nuremberg, Germany.  USRIOT  will be at the stand 3-620, and we hope you can come to visit. USRIOT  leads the industrial IOT in China. As a leading IOT resolution server, we have been dedicated to the R & D, production and sales of industrial IOT communication devices and modules in the long run. The company has worked to provide customers with more networking transmission plan since the establishment, and we are determined to be an ecological enterprise in the field of industrial IOT. At this exhibition, products that  USRIOT  will exhibit include: Serial to Ethernet Converter : USR-TCP232-410S Serial to WIFI and Ethernet Converter :USR-W610 Industrial 4G Router :USR-G806-A Industrial 4G Modem :USR-G781 8-way network IO controller :USR-IO808-GR 4-way  I/O Network Controller/LoRa Gateway :USR-IO424T-GR Industrial CAN to Ether...

How to Transmit Data from Cisco Router to PC through Serial to Ethernet Converter?

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USRIOT's Low-Cost RS232 Serial to Ethernet Converter  USR-TCP232-302 , which is small size and can be easily installed. Here is the question: How to transmit data from cisco router to pc through serial to etherner converter USR-TCP232-302? when user want to transmit data from cisco router to pc, please follow that: if user connect  USR-TCP232-302  to switch, user should make  USR-TCP232-302  work at DHCP, the pc should be in the same network segment; if user connect  USR-TCP232-302  to pc directly,  USR-TCP232-302  need work at static user can creat one V-COM on pc, set the vcom work at TCP Client mode, the remote IP:192.168.0.7(IP of 302), remote port 23 The following article is about transmit data to V-COM through USR-TCP232-302: http://usriot.com/support/faq/777.html

4G Modem Hazardous Gas Detection Solution

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Industry background and analysis In some special work situations, such as working in the confined space, coal mining, emergency accident handling and maintenance in petrochemical enterprise, there are often sudden hazardous gas leakage due to leakage, volatilization and other reasons. At this moment, equipping and installing a suitable gas detector will alert you when a hazardous gas concentration has just occurred, thus avoiding a poisoning accident. Case elaboration 1.The terminal equipment gas detector is connected to the 4G modem. If the air quality of the detected area exceeds the warning threshold, the alarm will be triggered automatically, and the 4G modem will then transmit the received data information to the cloud platform. 2.The cloud platform receives data prompts in real time, and the staff determines the pros and cons of the working environment according to the data, and timely informs the maintenance personnel to take countermeasures...

RFID Reader Solution

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Due to the fact that the school has many people and the large mobility inside, generally it is difficult for the teachers to grasp the situation of each student in time, also the parents can't know in time whether the children go to school or leave school on time. Once teachers and parents can't understand the specific situation of students in real time, it will bring great difficulties to students' safety management and education. USRIOT Ethernet module provides students and parents with a RFID reader solution for both parties so that student management can be guaranteed. Topological graph   The problems you may encounter and our advantages The RFID reader generally has a UART serial port, and the interface conversion problem of the external device is worthy of the user’s consideration; Children are lively and active, make sure that dynamic information in real time can be got to understand the current situation of childre...

4G routers used in unmanned engine room remote monitoring

Outline In recent years, due to the increasing amount of information and communication and increase security room is increasingly apparent, especially for some key sectors and enterprises, the engine room of these units if the accident will directly affect the normal office units, are more likely to lead to other ACCIDENT. For a long time, unable to monitor the working status of the engine room, how to ensure the normal operation of the system within the room has become a major issue. With the realization of dispatching integrated automation transformation, achieved through a remote room environment monitoring (temperature, humidity, fireworks, etc.) become the unmanned engine room urgent problems. The wireless communication as a convenient and efficient means of communication has been adopted by many industries, electricity engine room unattended remote monitoring system uses advanced GPRS network, set the computer, communications, electronics, automatic control and other advance...

What is LoRa? Are lora and lorawan the same thing?

Technically, Lora is a radio modulation scheme - a method of manipulating radio waves to encode information by using a multi-symbol format of chirp. LoRa also refers to systems that support modulation, including  LoRa modules , LoRa data transmission terminals, and  LoRa gateways . Sometimes it refers to the LoRa communication network for IoT applications. In essence, LoRa is a clever way to get very good receiver sensitivity and low bit error rate (BER) from inexpensive chips. This means that using LoRa instead of using other radio technologies of the same price, low data rate applications can achieve a longer range. Sometimes people also say LoRa, what they mean is LoRaWAN. But LoRaWAN is different. It is a media access control (MAC) layer protocol built on the basis of LoRa, and built by using Semtech's LoRa modulation scheme. However, LoRaWAN is rarely used in industrial (private network) applications. It is more suitable ...

Serial device server-industrial weighing solution

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Industrial background Weighing management of industrial production lines has always been one of the important tasks in industrial scenes. Especially in the case of unattended operation, how to do a good job of  weighing data’s fast transmission, effective management and prevention of cheating has long been discussed by the industry. Industry status and analysis Traditional weighing scenes rely on manual recording, and at the later stage, use RS232/485 bus mode for data transmission. With the development of industrial automation, a single approach has been unable to continue to meet industrial weighing needs, mainly reflected in: 1. Manual recording is low in intelligence, error-prone, and high in labor costs. 2. The bus mode is suitable for small-scale applications. When dealing with large industrial networks, there are shortcomings such as poor networking performance, cumbersome wiring, low transmission rate, poor compatibility, and short communication dista...

How to Configure Serial to WiFi and Ethernet Converter USR-W610?

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Question: 【What is the product model?】:Serial to WiFi and Ethernet Converter- USR-W610 【Where do you purchase the products?】: en.usr.cn 【What's the firmware version?(You can get firmware version from AT command AT+VER or settings webpage)】:7.03T.04 【How do you connect and configure the USR device?】: Via web page 【What's your application? What do you want to realize?】: I want to exchange some serial data which contain 2 protocol (modbus and custom protocol) between  1 PLC and 8 slave (plase see attachment). communication will use master-slave style just like use hardwire rs485, but this time...

The principle of the serial device server

Serial device server  parses the packets from the TCP/IP protocol into serial data streams; Conversely, the serial data stream can also be converted into a TCP/IP protocol data packet to realize data network transmission. Serial device server can connect multiple serial devices and can select and process the serial data stream, convert existing RS232 interface data to IP port data, this will enable traditional serial data to be sent to popular IP channels, it is not necessary to prematurely eliminate the original CNC system equipment without Ethernet module, so as to improve the utilization rate of existing equipment, save investment and simplify wiring. In the aspect of data processing, the serial server completes storage control of communication data between connection-oriented RS232 link and wireless connection Ethernet. The system processes various data, processes the serial data stream from the serial device, and performs format conversion to make it a data frame that can...

Send Serial Data to Server Using USR WIFI Converters

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First power on WIFI device(named A), set PC join the wifi of A Then enter 10.10.100.254, the account and password are both admin the parameters of A should be same with serial device Set A work at STA mode, make A join the wifi which can access external network, click apply We use test.usr.cn(port 2317) for test, you should fill in with the remote IP/domain and remote port Click apply and reboot A Then the data can transmission from serial port to Cloud Note: test.usr.cn return what you send Source: http://usriot.com/support/faq/897.html

The Applications and Solutions of RS485 to Ethernet

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The applications of RS485 to Ethernet  RS485 communication technology is used a lot in engineering, and its main advantages are as follows: 1. The wiring is simple: only 2 wires are needed, and now the shielded wire interface of the network cable is generally used. 2. The communication distance is long: since the differential mode communication method is adopted, the communication distance is farther than that of RS232. 3. It can support multi-machine networking communication: compared with RS232 one-to-one connection. RS485 can mount multiple terminals online, and realize multi-machine communication by query-response. However, RS485 now often needs to be converted to Ethernet, which is converted to TCP/IP, after analyzing, the main reasons behind are: 1. Ethernet can be connected to the Internet so that long-distance communication can be realized, and monitoring can be achieved on a global scale, which is impossible for RS485. 2. When mult...

The Loopback Test of the RS232 Serial to Ethernet Converter USR-TCP232-302

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The loopback test is using 1 PC to test the  RS232 serial to device server  USR-TCP232-302.You can send the data with Ethernet and receive with serial port. And you also can send data with serial port and receive with Ethernet. Figure 1 The loopback test Before you start to test, you should disable your wireless network connection and turn off firewall in your PC. Figure 2 Turn off the firewall and wireless network connection Setup the IP address of your PC, we setup it as 192.168.0.201.It should be in same Net segment with USR-TCP232-302(default IP address 192.168.0.7). the subnet mask we use 255.255.255.0 Figure 3 Setup IP address of your PC Connect the module like this picture.   Figure 4 Connection of USR-TCP232-302 Open the USR M0 Series-V2.1.2.118.exe.click on search device Figure 5 configure tool We searched the module which IP address is 192.168.0.7.You can configure the module with the part of the red block. Figu...

4G Modem Detailed Analysis

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4G Modem is used for wireless network data transmission of industrial equipment. This paper mainly analyzes the 4G modem from three aspects: appearance interface, usage method and application environment. Port The appearance interface of 4G Modem generally only provides serial port interface networking mode. 4G Modem is mainly used for bidirectional transparent transmission between serial data and IP data. Usage method: The main purpose of 4G Modem is to achieve dial-up, not a gateway in the true sense. For example, after 4G Modem is connected to the terminal device and the dialing process is completed, 4G Modem can be used as a new network device, and the terminal device address can use the 4G Modem to bind address. Application environment: The transmission distance of 4G Modem application in field terminal is relatively scattered, and the data communication rate is high. Therefore, 4G Modem real-time performance can satisfy most industrial fields, which...

Analysis of the Function of Serial Device Server

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In short,  serial device server  is a kind of network communication interface conversion equipment, which can convert common RS-232, RS-485, RS-422 serial ports into TCP/IP network interface, and realize both way transparent data transmission between RS-232, RS-485, RS-422 serial ports and TCP/IP network interface. This paper introduces the relevant functions of serial device server.   Serial device server can connect the traditional RS232/422/485 devices to network immediately. Serial device networking servers, like microcomputers with CPU, real-time operating system and TCP/IP protocol, transmit data in serial and network devices. Using serial server, you can access, manage and configure remote devices with your computer anywhere in the world through the network. Let the electrical equipment which only have serial interface, such as POS, ATM, display screen, keyboard, credit card machine, card reader, switches, mini-computer, tank...

Setting Method of Serial to Ethernet Converter(USR-TCP232-410S) Accessing Router Communication

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1.Directly connect  USR-TCP232-410S (Serial to Ethernet Converter) port with computer cable, and give power to the module 2.Open parameter setting software USR-TCP232-M4,E45-V2.3.0.78.exe (downloading address:  http://www.usr.cn/Download/90.html),  click “searching device”, and click to search for module IP as follows: 3.In the basic setting, change the IP address to “DHCP/Dynamic IP”, and click “basic setting” as follows: 4.Directly connect USR-TCP232-410S(Serial to Ethernet Converter)  port with router LAN cable, and access computer to the same router 5.Open parameter setting software USR-TCP232-M4,E45-V2.3.0.78.exe, click “searching device”, click to search for module IP, and choose to communicate through RS485 serial or RS232 serial. RS232 is taken as an example, its configuration parameter is as follows, and then click “port 1 setting”. 6.Open a monitor port on server to make a test as follows 

FAQs of Serial to Ethernet Converters

1.Q:I just bought a  USR-TCP232-302  for sending ais data over internet. It looks like it can't handle 38400 baud rate. It's set up as UDP client. If I input a 9600 baud gps nmea string it works fine but when swapping to AIS at 38400 baud something comes trough but it's not readable data. A: It was the connector, please test again. Q: Thanks, Working fine now 2. Q:we have a energy meter and we want to poll data from our cloud through Modbuscan we use TCP232-304 ? A: TCP232-304 can't achieve your quest u can consider  TCP232-410S , it support modbus https://www.usriot.com/download/M4/USR-TCP23...

Dual card industrial 4G router

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The Achilles heel of industrial wireless connection has always been unpredictable, and this is absolutely not the fault of operators that offer LTE wireless phones and data services. Of course, some countries are more fortunate in infrastructure than other countries, but due to the channel characteristics of the wireless environment, if the dual-card industrial router cannot be connected, only one LTE terminal device can be connected. It must be acknowledged that fluctuations in the performance of LTE networks are inevitable. A good way for mutual complementarity is to combine 2 or more unpredictable into a single channel, but it is more predictable to connect the broadband combination industry in the early 2000s. As time goes on, intelligent layer routers that have evolved into dual-card in cognitive networks have shown phenomenal milestones. USRIOT has demonstrated dual-card industrial 4G routers at several exhibitions, having the multi-network intelligent switching function of ...