PROFIBUS-DP Fieldbus Incident Report: Struggling with Distributed Control? Here are 3 Solutions!

PROFIBUS-DP Fieldbus Incident Report: Struggling with Distributed Control? Here are 3 Solutions!

1. Fatal Fault on Site A certain automotive welding workshop, Siemens S7-300 PLC (6ES7 315-2EH14-0AB0) suddenly reported error 0x1A3B, with 32 DP slaves going offline collectively. The monitoring screen displayed:<span>[2023-05-12 03:15] PROFIBUS-DP System Fault: Telegram timeout (Slave 17-32)</span> The signal amplitude was only 0.8Vpp (standard requirement ≥1.5Vpp), with a rise time jitter of 35ns (IEC61158 … Read more

Special Surface Treatments for Touch Screen Glass Covers

Special Surface Treatments for Touch Screen Glass Covers

Special Surface Treatments for Touch Screen Glass Covers The current mainstream processes for cover glass surface treatments include AG (Anti-Glare), AR (Anti-Reflection), AF (Anti-Fingerprint), AM (Anti-Microbial), and AUV (Anti-UV). In this issue, we will delve into the key technologies of the four major surface treatment processes for cover glass: AG (Anti-Glare), AR (Anti-Reflection), AF (Anti-Fingerprint), … Read more

Analysis of NVIDIA Jetson Thor: Which is Better Compared to GB10?

Analysis of NVIDIA Jetson Thor: Which is Better Compared to GB10?

For small and medium-sized enterprises, NVIDIA will launch the Jetson development kit, which will be sold in module form. Image source: NVIDIA Following Orin, Thor will also be released, with Jetson Thor set to launch in June 2025. Data source: Internet, compiled by Zosi Automotive Research Jetson Thor and Thor-X have similar performance, with a … Read more

Understanding the Need for 120 Ohm Termination Resistors in CAN Bus Systems

Understanding the Need for 120 Ohm Termination Resistors in CAN Bus Systems

Friends in “Vehicle Technology” should know that the CAN bus requires two 120 Ohm termination resistors at both ends, making the total line resistance 60 Ohms. This is a piece of knowledge that almost everyone knows, but very few can explain clearly. In most cases, we have the experience that adding a 120 Ohm resistor … Read more

Detailed Explanation of UART Project – 00 Project Overview

Detailed Explanation of UART Project - 00 Project Overview

Click on “Two Monkeys Club“ Follow Us Table of Contents 00 Project Overview 01 Synchronization Processing of Asynchronous Clocks 02 FIFO Design (Part 1) 03 FIFO Design (Part 2) 04 Baud Rate Design 05 Data Reception Section 06 Data Transmission Section 07 Simulation Framework 08 Baud Rate Model and Register Operations 09 Data Transmission Model … Read more

SPI Peripherals: The Bridge for High-Speed Synchronous Serial Communication

SPI Peripherals: The Bridge for High-Speed Synchronous Serial Communication

In embedded systems, efficient data transmission is key to connecting processors with peripheral devices. SPI (Serial Peripheral Interface), as a high-speed synchronous serial communication protocol, has become the preferred solution for interactions with peripherals such as sensors, memory, and display modules due to its flexible configuration, full-duplex capability, and low-latency characteristics. This article will comprehensively … Read more

Comprehensive Collection of Sensor Principles and Applications

Comprehensive Collection of Sensor Principles and Applications

The future of manufacturing is intelligent, and the foundation of intelligence is sensors; the direction of the Internet is the Internet of Things, and the cornerstone of the Internet of Things is also sensors. With the rapid development of sensor technology, our “Sensor Technology” public account is also continuously growing, providing technical information, product applications, … Read more

Can You Short-Circuit the Signal Line if the Sensor is Broken?

Can You Short-Circuit the Signal Line if the Sensor is Broken?

Search on WeChatTechnical Training First, it is important to clarify that if the sensor is already broken, it is meaningless to short-circuit it! The sensor, as the first line of defense for measuring input, converts the measured variable into a measurable signal, which can be an analog signal, a digital signal, or other forms of … Read more

How to Wire Sensors in PLCs? Master These Two Points, It’s Actually Quite Simple

How to Wire Sensors in PLCs? Master These Two Points, It's Actually Quite Simple

In factories, different devices are designed by manufacturers, and there are many types of PLC control systems. The types of sensors used also vary; some use NPN type, while others use PNP type. Therefore, many electricians feel confused when they see NPN and PNP sensors and do not know where to start. Here, I will … Read more