BFH Click the blue text to follow us↑↑↑↑ RS-485 is a wired transmission, so it requires a hardware transmission medium, which is essentially just two wires. The actual signal transmitted on these two wires is the same; the sender splits this signal into two, but at the receiving end, it is restored to its original … Read more
A previous article summarized the industrial HART bus, and today we will discuss the RS-485 bus. RS-485 is a widely used communication interface, and this article will cover the key points in detail, with a length of about 5000 words. The Past and Present RS-485, what does RS mean? It stands for Recommended Standard, which … Read more
CANopen is a high-level protocol based on CAN, which is widely used in various automation control systems. CANopen networks use twisted pair cables to transmit differential signals, but factors such as poor electromagnetic environment, non-standard wiring, and unreliable grounding in domestic industrial sites can directly affect communication quality and interfere with bus operation. To ensure … Read more
Search on WeChat Technical Training In 1979, Schneider Electric established a bus protocol for industrial sites called the Modbus protocol. Nowadays, many industrial applications using RS485 communication adopt the Modbus protocol. Today, we will explore RS485 communication and the Modbus communication protocol. 1. Introduction In fields such as industrial control, power communication, and smart instruments, … Read more
Last Issue: Cambridge University is hiring postdoctoral researchers with a starting salary of 280,000, valid until October 7 Qinghua University Youth Thousand Talents Program Professor Zhang Pinjia’s research group Long-term recruitment of postdoctoral researchers, with a salary of up to 300,000 Application Requirements: 1. Applicants must be in good health and under 35 years of … Read more
For business cooperation, please contact QQ: 3350579506 For more exciting consultations, please follow Electrician 365（diangong365） Electrician Home QQ Group: Group ①: 468193845 Group ②: 522898769 1. What is the RS-485 Interface? How Does It Compare to RS-232-C? Answer: Since the RS-232-C interface standard was introduced earlier, it inevitably has some shortcomings, mainly four points: The … Read more
Among various solutions for medium to long-distance communication between MCUs, RS-485 is widely used in factory automation, industrial control, community monitoring, and water resources automatic reporting due to its simple hardware design, ease of control, and low cost. However, the RS-485 bus still has defects in anti-interference, adaptability, and communication efficiency. Improper handling of some … Read more
This article is a guide. The advantages of the RS-485 bus are well-known, and to ensure stable communication, isolated RS-485 modules are used for signal isolation. However, during actual RS-485 networking, one may encounter communication failures, errors, or even damaged RS-485 transceivers. What causes these issues? This article will deeply analyze the problems associated with … Read more
*Follow to receive 2798 PLC wireless communication cases* The PROFIBUS bus is a purple shielded twisted pair cable, with the two cores being red and green. When connecting to the bus connector, the wiring must be done according to color, generally A1 and A2 are green, while B1 and B2 are red. 2. Devices on … Read more
WeChat Search Technical Training HISTORY / Previous Recommendations Complete Question Bank for 2021 Electrical Beginner Exam (Includes Answers) Is Troubleshooting Inverters Difficult? Just One Click! Can You Brush Through All Electrical Exam Questions with One Click? This Tool Is a Must-Have! Which of the Five Major Electrical Drawing Software (CAD, Eplan, CADe_simu…) Do You Pick? … Read more