Ethernet is de meest gebruikte communicatieprotocolstandaard in bestaande lokale netwerken. Deze standaard definieert de kabeltypes en signaalverwerkingsmethoden die in LAN worden gebruikt). Ethernet verzendt informatiepakketten tussen onderling verbonden apparaten met een snelheid van 10~100Mps....
Application of serial port server in the Ministry of Transport
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…
What are the common PLC modules?
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…
How to lay out the 4g industrial routers in the project
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…
Is het principe van seriële communicatie gebaseerd op flow control?
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…
Waar worden RS232 seriële servers vaak gebruikt? Zullen ze in de toekomst gebruikt blijven worden?
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…
Veelgestelde vragen over inter-seriële communicatie van seriële servers
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 ,…