The Rise of Domestic PLCs Amidst the Wave of Domestic Substitution

The Rise of Domestic PLCs Amidst the Wave of Domestic Substitution

1. The Spring of Domestic PLCs Has Arrived, But Your Account Is Still in Winter Recently, I came across news about Zhongkong Technology’s PLC supporting the autonomous control of high-end equipment. To be honest, I felt both excited and emotional. I am excited that Chinese manufacturing is making the leap from following to leading, and … Read more

How to Distinguish Between Source and Sink Types in PLCs?

How to Distinguish Between Source and Sink Types in PLCs?

1. The source type and sink type generally refer to transistor-type circuits and can be directly understood as the IO circuitproviding/outputting current (source) orabsorbing/inputting current (sink). For DO, the PNP transistor output is generally a source type, where the output module is internally connected to the power supply, allowing current to flow out through DO … Read more

Standardization of Mainstream PLC Socket TCP Client Communication

Standardization of Mainstream PLC Socket TCP Client Communication

1. Overview of PLC Socket TCP Client Communication: In socket TCP client communication, the client first calls a system function to create a TCP socket, then initiates a connection request to the server at a specified IP address and port. A reliable connection is established through a three-way handshake. The communication protocol can be customized … Read more

Detailed Explanation of PLC Control System Project Development Process

Detailed Explanation of PLC Control System Project Development Process

In today’s rapidly developing era of industrial automation, PLC (Programmable Logic Controller) has become the core control device in the field of industrial automation due to its powerful functions, high reliability, and flexibility. For engineers new to the industry, mastering the PLC control system project development process is a crucial step into this field. A … Read more

Revealing the Internal Structure of PLC Control Cabinets

Revealing the Internal Structure of PLC Control Cabinets

Revealing the Internal Structure of PLC Control Cabinets The PLC control cabinet is the core device of industrial automation systems, integrating Programmable Logic Controllers (PLC), electrical components, and auxiliary equipment to achieve automated control of machinery or production processes.1. Basic Components1. PLC Main UnitCentral Processing Unit (CPU): Executes control programs, such as Siemens S7-1200, Mitsubishi … Read more

Differences Between Industrial PCs and PLCs

Differences Between Industrial PCs and PLCs

PLCs and Industrial PCs (IPCs) are two different control devices in the field of industrial automation, both play important roles in industrial automation, but there are significant differences in functionality, application, and structure between IPCs and PLCs. Hardware and Reliability Industrial PCs adopt a rugged hardware design, featuring a complete computer architecture, including processors, memory, … Read more

Why Do Experienced Engineers Prefer These Two Touchscreen Brands?

Why Do Experienced Engineers Prefer These Two Touchscreen Brands?

(Thanks for everyone’s likes and appreciation. If this article resonates with you, please “like” and “recommend”, thank you all!) Article Overview When selecting components for industrial control projects, there are many factors to consider, such as equipment reliability and budget. Besides budget, the most troublesome aspect is brand selection. There are numerous touchscreen brands on … Read more

Answers to Programmable Controller Applications at Henan Open University

Answers to Programmable Controller Applications at Henan Open University

[Image] Click the blue text to follow immediately [Image] 1. The programmable controller uses a microprocessor as the central processing unit, which can control logical quantities and also control analog quantities. Reference: Analog quantity 2. The PLC has logical operation functions and can describe various connections such as the series of relay contacts and parallel … Read more

Disassembly of Huichuan Technology PLC: Practical Application of Domestic FPGA

Disassembly of Huichuan Technology PLC: Practical Application of Domestic FPGA

Star and follow us ⭐️Don’t miss the exciting content With the explosive growth of the new energy vehicle and rail transit businesses, Huichuan Technology achieved good performance in the first half of this year, while its general automation business also maintained steady growth. In this issue, we are preparing to disassemble a product from its … Read more

Core Device Knowledge Graph in Industrial Control: From Principles to System Integration – PLC

Core Device Knowledge Graph in Industrial Control: From Principles to System Integration - PLC

1.PLC (Programmable Logic Controller): The “Brain” of Industrial Automation 1.1 PLC Working Principles and Structural Composition PLC is the core device of industrial automation control systems, utilizing a “sequential scan, continuously cycling” working mode to achieve precise control of industrial equipment. Its basic components include the Central Processing Unit (CPU), input/output modules, power supply module, … Read more