1. Technical Background RS-232: Traditional serial port standard, typical rate 115.2 kbps (maximum about 1 Mbps). RS-485: Industrial serial port standard, typical rate 10 Mbps (theoretical maximum can reach 50 Mbps). USB: There are significant differences between different versions, for example: USB 2.0:480 Mbps USB 3.0:5 Gbps (about 5120 Mbps) USB 4.0:40 Gbps 2. Comparison … Read more
Free for Commercial Use! A Low-Code Visual Development Platform for Industrial Web with 1500+ Components Incredible Slimming!!! RS-232 from DB25 to DB9 Industrial Control for 5 Years!!! Only Connecting Three Wires to RS-232??? Importance of RS-232 RS-232 is a classic serial communication interface standard that has been widely used in computers, industrial equipment, embedded systems, … Read more
In many industrial and automotive applications, protecting interface transceivers from various electrical overstress events is a major concern. Transient Voltage Suppressor (TVS) diodes are commonly used for this purpose as they can clamp voltage spikes by creating a low-impedance current path. The electrical characteristics of TVS diodes are determined by several process factors. These parameters … Read more
Related Models MELSEC MX Controllers, MELSEC Programmable Controllers, GOT-A900/GOT1000/GOT2000 Series 1 Operating Precautions When connecting a module with RS-232/USB interface*1 to a computer, please follow the operating instructions of the computer while adhering to the precautions below. *1 For specific target models, please refer to the content below. 2 Target Models 1.1 When Using the … Read more
In the previous article, we discussed the differences between Modbus and RS-485, which belong to different layers. If we use a language analogy, then Modbus determines which “language” to use, while RS-485 and RS-232 determine the method of communication, such as face-to-face or telephone communication. In this article, we will discuss the differences between RS-485 … Read more
RS-232, RS-485, and RS-422 are common serial communication standards, each with unique characteristics and applicable scenarios. Below is a detailed analysis of these three communication standards: 1. RS-232 1. Origin and Purpose: ● Established by the Electronic Industries Alliance (EIA) in 1962. ● Aimed at solving low-speed, short-distance communication issues between early computers and peripheral … Read more
Successful Application of RS-232 Technology by Hubei Suizhou Company Realization of PC Remote Control for VMS Intelligent Central Control System VMS Intelligent Central Control System In recent years, with the rapid development of information technology, traditional serial communication has gradually become inadequate in meeting the demands for large-scale, long-distance, and efficient data transmission. To meet … Read more
1、Serial ports and COM ports refer to the physical interface form (hardware). TTL, RS-232, and RS-485 refer to the level standards (electrical signals). 2、When connecting devices, generally only GND, RX, and TX are connected. The Vcc or +3.3V power line is not connected to avoid conflicts with the power supply of the target device. 3、The … Read more
Follow our official account to receive timely updates on new articles. Introduction: RS-232, RS-485 and RS-422 are standards defined and published by the Electronic Industries Alliance (EIA). EIA is an American industry association focused on developing and promoting standards in the electronics and electrical industries. Among these, RS-485 is highly praised and widely used in … Read more
1. RS-232 RS-232-C is a serial physical interface standard established by the Electronic Industry Association (EIA) in the United States. RS stands for “Recommended Standard,” 232 is the identification number, and C indicates the revision number. Its full name is “Serial binary data exchange interface technology standard between Data Terminal Equipment (DTE) and Data Communication … Read more