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.…
Applicazione del server della porta seriale nel Ministero dei Trasporti
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…
Quali sono i moduli PLC più comuni?
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…
Come disporre i router industriali 4g nel progetto
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…
Il principio della comunicazione seriale si basa sul controllo di flusso?
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…
Dove sono comunemente utilizzati i server seriali RS232? Continueranno a essere utilizzati in futuro?
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…
Domande frequenti sulla comunicazione interseriale dei server seriali
The serial port server mainly includes: a power circuit module, an ARM9 processor, a network port circuit module, and a serial port circuit module. The ARM9 processor includes the following interfaces: at least one network port circuit interface and at…
How RS485 works
RS485 principle This principle, also known as ANSI/TIAEIA-485, TIA-485-A or TIA/EIA-485, is jointly defined by the Electronic Industries Alliance and the Telecommunications Industry Association. Simply put, it is a method used in balanced digital multipoint systems. Standards that define the…
PPPoE protocol principle of industrial routers
As we all know, the PPPoE protocol of industrial routers is a common dial-up Internet access method. So what is its principle? PPPoE: DNS protocol The Internet is essentially just a very large computer network, and in many ways is…
Serial port rs232
Released in 1962 by the Electronic Industries Association (EIA) and BELL and other companies; the full name of the RS 232C standard (protocol) is the EIA-RS-232C standard, where EIA represents the Electronic Industries Association, RS represents the recommended standard ,…