Huabei Industrial Control

Essential for Industrial Control: EEPROM Data Storage in PIC16F Microcontrollers (Includes Ready-to-Use Code)

by

In industrial control settings, microcontroller main control boards often need to store critical data such as calibration parameters, device addresses, and operation logs. —— These data must not be lost due to power outages, and the built-in PIC16F series microcontrollers’ EEPROM perfectly meets the core requirement of “long-term power-off data retention”. I have been engaged … Read more

Differences Between PLC and Relay Control Systems

by

Differences Between PLC and Relay Control Systems PLC was developed to overcome the limitations of relay control systems. We can understand this through a vivid analogy: A relay control system is like an old-fashioned mechanical telephone switchboard, requiring an operator (relay) to establish connections by physically plugging and unplugging cables (hardwiring). Changing functions requires rewiring, … Read more

Understanding PLC Selection: Comparison of Mainstream Brands/Series + Beginner’s Pitfall Guide

by

Faced with the dazzling array of PLC brands in the market (Mitsubishi, Siemens, Omron…), how should beginners choose? Today, using real factory cases for comparison, I will teach you the 3 steps to select the most suitable PLC! 1. Core Differences Among Mainstream Brands Brand Features Typical User Profile Representative Models Mitsubishi Japanese representative, strong … Read more

Domestic MCUs Breakthrough! Top 50 Manufacturers Compete, Automotive Chips Break Foreign Monopoly, Three Key Technological Directions Determine the Future Landscape for the Next Five Years

by

From the motor control of a small robot vacuum to the domain control of autonomous vehicles, an inconspicuous MCU (Microcontroller Unit) serves as the “nerve center” of all smart devices. For decades, this field has been dominated by international giants such as Renesas, NXP, and STMicroelectronics, leaving domestic manufacturers to struggle in the mid-to-low-end market. … Read more

Accelerating Domestic Substitution: List of PLC Concept Stocks and Business Layout

by

PLC concept stocks refer to the stocks of listed companies that have certain business layouts or technological advantages in the field of Programmable Logic Controllers (PLC). Here are some common PLC concept stocks: 1. Inovance Technology (30Z0124): Their general automation business covers core products and solutions in industrial automation, including inverters, servo systems, and control … Read more

Bidding Farewell to Alternatives: The Comeback of Domestic Large PLCs Amidst a Shrinking Market

by

Introduction: The “Choke Point” of Core Industrial Software Seen Through the Lag of EAD The lag in the development of EAD (Electronic Design Automation) software is a microcosm of China’s constraints in the high-end industrial foundational software sector. It reveals two harsh realities: Gap in Technological Accumulation: Such software requires profound algorithmic accumulation, physical models, … Read more

Qiangda Circuit: Steady Growth in Performance Drives High-Quality Development of the PCB Industry

by

Recently, Shenzhen Qiangda Circuit Co., Ltd. (abbreviated as Qiangda Circuit; stock code: 301628.SZ) released its 2025 semi-annual report, marking the first semi-annual report since Qiangda Circuit was listed on the Shenzhen Stock Exchange on October 31, 2024. The company’s performance continues to show growth, with multiple business indicators performing outstandingly. Qiangda Circuit has been deeply … Read more

Mastering the Art of PLC Programming: The Core Competence

by

“Difficult tasks in the world must be done while they are easy; great tasks must be done while they are small.” —— Laozi, Tao Te Ching, Chapter 63 Two thousand years ago, Laozi’s wisdom still shines brightly in today’s wave of industrial automation. When we face production lines stretching hundreds of meters, composed of hundreds … Read more

The ‘Power Stability Master’ in the Semiconductor Industry

by

Specializing in power devices as the ‘hardcore bodyguard’, ensuring the safety of current for every device from home appliances to new energy. Is your phone charging inconsistently? Are your home appliances acting up? Does your car’s electrical system occasionally misbehave? Don’t panic—we bring you the ‘stabilizing force in the world of electronic components’! We don’t … Read more

The Development of PLC: From Relays to Intelligent Controllers

by

The Development of PLC: From Relays to Intelligent Controllers ——A lecture by an electrician teacher who transitioned from a “traditional electrical worker to an automation expert” When it comes to PLCs, they are now the “intelligent controllers” that everyone in factories is clamoring for. However, if you really ask how they came to be and … Read more