In electronic circuits, it is necessary to establish the transmission and exchange of electrical signals between different devices, and these signals must be transmitted through specific interfaces. However, different level interfaces have different principles and application scenarios. How should we choose interfaces based on the circuit? 1. TTL Level Interface Principle: The TTL (Transistor-Transistor Logic) … Read more
In industrial automation and monitoring systems, the stability and reliability of data transmission are crucial. RS-485 and RS-232, as two common serial communication standards, each have unique advantages and limitations. Especially in terms of long-distance cable transmission, achieving stable and efficient data communication has always been a focus for engineers. This article will delve into … Read more
Serial communication is one of the most basic communication methods faced by electronic engineers, and RS-232 is the simplest among them. However, many beginners often cannot clearly understand the relationship and differences between UART and RS-232, RS-422, and RS-485. This article will discuss these concepts to help clarify their relationships. Communication issues, like traffic problems, … Read more
Serial communication is the most basic communication method faced by electronic engineers, with RS-232 being the simplest form. However, many beginners often struggle to understand the relationship and differences between UART, RS-232, RS-422, and RS-485. This article will discuss these concepts to help clarify their relationships. Communication issues, like traffic problems, also have various scenarios … Read more
Over 70,000 friends have followed this industrial control WeChat platform:Technical sharing,Learning exchange,Industrial control videos As industrial control professionals, it is essential for us to understand these concepts, which greatly assist in programming and data communication. RS-232, RS-422, and RS-485 are all serial data interface standards, initially formulated and published by the Electronic Industries Alliance (EIA): … Read more
Typically, we use serial ports for direct broadcasting and switching control of video servers, recorders, and switchboards, mainly utilizing RS-232, RS-422, and RS-485 interfaces. Below we will discuss the serial port interface standards, usage, and external plugins and cables. The RS-232, RS-422, and RS-485 standards only specify the electrical characteristics of the interfaces, without involving … Read more
RS-232, RS-485, and RS-422 often encounter various serial communication issues during on-site debugging, such as communication connection problems between different ports like RS-232, RS-485, and RS-422. Typically, conversion between RS-485 and RS-422 is quite convenient. However, when communicating between RS-232 and RS-422 ports, if there are no other conversion methods available on-site, and mailing could … Read more
WeChat Search Skill Training When electrical workers use PLCs, they will encounter many communication protocols and communication interfaces. Do you understand the most basic PLC serial communication and basic communication interfaces? 01 What is Serial Communication? Serial communication is a very common device communication protocol on computers (do not confuse it with Universal Serial Bus … Read more
This article aims to give you a clear understanding of Modbus, summarizing related knowledge about Modbus, which is very suitable for beginners. If there are any errors, suggestions and modifications are welcome. What Is a Protocol? Before understanding what Modbus is, let’s first look at what a protocol is. A protocol is a Chinese term, … Read more
The serial interface, abbreviated as serial port, is also known as the serial communication interface (usually referring to the COM interface). It is an expanded interface that uses serial communication. If classified by interface, there are several types including RS-232, RS-422, and RS-485, among which the RS-232 serial port is the most commonly used serial … Read more