Автор: iot-en (page 125)

1 Introduction With the rapid development of science and technology and information technology in our country, advanced technology has been applied to various industries. In modern control systems, data must be unified and analyzed, and equipment must be controlled in…

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.…

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…

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…

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.…

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.…

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…

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…

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…

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…