In industrial networking control, power conditioning, and point-to-point communication applications between computers, data is sent on the serial communication bus for various types of physical networks, such as RS232, RS485, and controller area networks. Each interconnected system typically has its own power supply, and systems

With the rapid development of information technology, the dependence of private information and business information transmission on wireless communication networks is significantly increasing, and the resulting attention to the security issues of the communication system itself is also rapidly increasing. As shown in Figure 1,

With the gradual maturity of network technology and the arrival of the wireless sensor era, wireless sensor network technology has become a technology hotspot in recent years. Embedding a standardized network protocol in network equipment can improve the interconnection between networks, improve the flow between

With the development of network technology, sensor technology, and communication technology, mankind has entered the era of the Internet of Things. In the era of the Internet of Things, a large amount of information, instructions, and data need to be transmitted between devices , which

Friends who have used PLC should know that the communication between PLC and control equipment is basically based on the serial communication interface and is controlled using its corresponding communication protocol. The serial communication interface includes RS232, RS422, and RS485. , RS422 can be seen

Ethernet is the most common communication protocol standard used in existing local area networks today. This standard defines the cable types and signal processing methods used in LAN). Ethernet transmits information packets between interconnected devices at a rate of 10~100Mps. Ethernet using twisted pair cable

1. Application of serial port server in the Ministry of Transport 1.1 Equipment distribution and connection status The Meishan Iron and Steel Transportation Department has 5 sets of AEI equipment distributed at the Guxiong Railway Station, which is far away from the transportation information system

Traditional PLC uses ladder diagrams and statement lists to make programming easy, and has the advantages of short system software development cycle and on-site debugging of programs. Traditional PLCs also have the disadvantages of being unable to support communication interfaces such as I2C and SPI

Existing industrial routers are generally used in relatively harsh environments. Due to work needs, most of the time the router needs to run all day or for several months. In order to make the industrial router have a longer service life, the existing router. Features

Serial communication method 2.1 Full-duplex and half-duplex modes If a data communication system uses different paths for the two transmission directions of data, such a system can work in full-duplex mode, and a system using full-duplex mode can send and receive at the same time.

4G data transmission module The 4G data transmission module developed by Zongheng Intelligent Control is a shell-type data transmission terminal. There are two products for users to choose: rail type and ear-mounted type, which can meet different application scenarios. This product is developed to realize

In process control projects, communication problems between DCS and lower computer PLC or field instruments are often encountered. Many chemical plants now adopt a general contract plus subcontracting model when constructing. Each supplier provides its own control system (usually mostly PLC), but in the central