Modbus Communication Protocol 1. Overview The Modbus communication protocol is an industrial field bus protocol standard. The commonly used Modbus protocols include three types: Modbus TCP, Modbus RTU, and Modbus ASCII. The Modbus communication protocol addresses the issue of sending information between electronic devices over serial lines. This protocol implements a master/slave model within its … Read more
In our daily lives, we often use devices related to Bluetooth functionality, such as mobile phones, but many users know very little about Bluetooth. What are the differences between Bluetooth 4.0 and 4.1? Are there different types of Bluetooth functionalities? What is the Bluetooth protocol? What parameters should be considered when selecting Bluetooth devices? How … Read more
Click on the top ” Technical Training ” and select “Pin to Top“ Over 160,000 industrial control professionals are following this WeChat platform: technical sharing, learning exchange, industrial control videos. In practical project applications, it is often necessary to use a single touch screen to monitor and operate multiple devices. This is commonly referred to … Read more
Click the image below to enter the industrial control industry platform How to analyze communication failures between the human-machine interface and PLC? Generally, when a failure occurs, the touch screen will issue a fault prompt, such as PLC NO Response or Device NO Response, indicating that the PLC or device is unresponsive. Alternatively, the touch … Read more
A netizen consulted me about methods to handle communication interference. Below are our exchanged emails (text slightly modified), hoping to help everyone. Q&A Netizen:Our unit has a set of equipment equipped with an S7-400 system, and a TP 270 touch screen placed on the operation console. Information is transmitted via DP/MPI. The strange issue is … Read more
Engineers often encounter the following problem: why can’t my touch screen communicate with the PLC? For example, here are two common issues: 1. Weintek Touch Screen and Siemens PLC Cannot Communicate, Always Prompting PLC No Response. How Should I Set It Up? Solution Approach: You need to set the same baud rate, the same data … Read more
Dog Xiaowang ~Wang~ Lazy cat, the neighbor installed a set of Hikvision “Wireless Alarm Kit”, look how happy those dogs are playing, why don’t we install it? ~Meow~ Stupid dog, don’t you see how big the owner’s house is? There is a small vault underground, and wireless cannot cover it, so let us guard the … Read more
Understanding the CAN Communication Bus: With the rapid development of the times, automotive electronic technology is constantly updated, so we must improve our technical level through continuous learning. In this issue, we will explore the automotive CAN communication bus, covering the principles, design, applications, and maintenance of CAN in a comprehensive article! “What is a … Read more
Definition of LIN Bus LIN (Local Interconnect Network) is a low-cost serial communication network designed for distributed electronic systems in automobiles. The main function of LIN is to provide auxiliary functionality for CAN bus networks, used in places like body electronic components (such as windows, mirrors, headlights, wipers, etc.). It is suitable for applications that … Read more
How to Learn Mechanical Drawing? It Would Be Too Difficult Without These Materials! (Click on the above brown text to download the materials) In engineering, the RS485 control line is often mentioned. What exactly is it? Today, I will discuss the applications related to RS485. By delving into RS485, you will find that there is … Read more