In the production and processing of resistive touch screens and liquid crystal displays, Newton’s rings (also referred to as rainbow patterns by some manufacturers) appear like a ghost haunting the workshop. If not careful, they can unexpectedly emerge during production and customer use, causing considerable distress for the process engineers managing the site. This is … Read more
In industrial settings, have you ever encountered the dilemma where remoteI/O modules are just a hundred meters away, yet due to electromagnetic interference, the data fluctuates? When production lines are too long, frequent packet loss occurs with copper cables, leading to downtime losses of tens of thousands? Don’t worry, today we will unveil theNaisun AutomationProfibus … Read more
In indoor environments such as oil refineries and chemical workshops, satellite signals are easily obstructed, and traditional positioning solutions often face issues of insufficient accuracy and short battery life. The application of Bluetooth 5.0 technology provides an efficient solution for indoor positioning with ID badges. Ultra-low Power Consumption Extends Battery Life Compared to traditional Bluetooth, … Read more
Click the blue text Follow us Abstract: Why is it necessary to install terminal resistors in CAN bus networks? In the article detailing the characteristics of CAN bus: high-speed CAN bus and low-speed CAN bus, it is stated that both high-speed and low-speed CAN networks require terminal resistors to be installed. High-speed CAN networks require … Read more
Analysis of Anti-Interference Technologies in Drone Self-Organizing Network Systems A MESH self-organizing network system composed of multiple drones and ground stations is a decentralized wireless communication network. The system consists of multiple airborne and ground communication terminals, with the core feature being “no fixed center,” adopting a decentralized architecture where all nodes are equal. In … Read more
Have you ever wondered why PLCs are so expensive (compared to control boards developed using STM32)? Why do they have such strong anti-interference capabilities? And why are they so stable?Today, let’s discuss these questions together, mainly from a hardware perspective!First, let’s take a look at the internal stacking structure of a PLC, as shown below:Generally … Read more
(Thanks to everyone for your likes and appreciation. If this article resonates with you, please “like” and “recommend”, thank you all!) Article Overview A few days ago, while debugging equipment, the CPU module of a running S7-1200 PLC suddenly crashed. After powering it back on, it reported an error, and the SF light remained on, … Read more
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Safety distance requirements Including electrical clearance (spatial distance), creepage distance (surface distance), and insulation penetration distance. 1. Electrical clearance: The shortest distance measured along the air between two adjacent conductors or between a conductor and the surface of an adjacent motor housing.2. Creepage distance: The shortest distance measured along the insulating surface between two adjacent … 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