: Recently, I modified an old device that required communication control applications, from which I derived some insights: 1. FX2N-485-BD is economical to use; A./ (ASCII communication mode, operation, and frequency register address can be easily mistaken, but LRC checksum is easy to obtain)/ B../ (RTU communication mode, operation, and frequency register address is less … Read more
1 Introduction In 1983, the Electronic Industries Association (EIA) approved a new balanced transmission standard known as RS-485. Investigations reveal that RS-485 is highly acclaimed and has been widely applied in industrial, medical, and consumer products, becoming the dominant specification for industrial interfaces. This application report provides design guidelines for engineers who are unfamiliar with … Read more
(1) Introduction RS-485 is a balanced transmission standard for serial communication approved by the Electronic Industries Alliance in the United States in 1983. It only specifies the electrical characteristics of drivers and receivers without defining a protocol; therefore, many higher-level interface standards refer to RS-485 at the physical layer, such as Modbus, Profibus, etc. (2) … Read more
Today, I will share a document from TI titled “RS-485 Design Guide”. Reply “485 Design Guide” in the public account backend to obtain the complete PDF. 1 Introduction In 1983, the Electronic Industries Association (EIA) approved a new balanced transmission standard known as RS-485. It has been found that RS-485 is highly praised and is … Read more
Today, I would like to share a document from TI titled “RS-485 Design Guide”, which can serve as an introduction. The document link is as follows: https://www.ti.com.cn/cn/lit/pdf/zhcaa89 1 Introduction In 1983, the Electronic Industries Association (EIA) approved a new balanced transmission standard known as RS-485. It was found that RS-485 was highly praised and widely … Read more