01 Many beginners learning PLC programming think like this: “As long as the functionality is achieved,” “Getting it to run is the most important thing,” “Just pile it up first, and optimize later.” What’s the result? The program can run. But when you need to modify it, you find yourself confused. You can’t even find … Read more
01 Sitting in front of the industrial control computer every day, with the fan humming, once the PLC programming interface opens, the world becomes quiet. With a click of the mouse, the ladder diagram slowly unfolds; the logic instructions line up one by one, like troops preparing for battle before the fight begins. Do you … Read more
01 As programmers, especially those working with PLCs, what we fear the most is not the difficult problems themselves. It’s those “not difficult at all, but you just can’t get past” small bugs. You’ve checked the logic five times, scanned the variables ten times, monitored for a whole day, yet the signal lights are still … Read more
After learning the instructions and completing the training course, do you still feel confused when starting a PLC project? Does the logic get messy while coding, leading to a patchwork solution at the end? It’s not that your programming skills are lacking; rather, you haven’t grasped the core logic of project implementation—organizing the “process” clearly … Read more
[Image] In the field of practical PLC engineering, many people are desperately searching for the key to success. In fact, the answer is as simple as four words—programming approach! Many PLC beginners, and even some who consider themselves engineers, become confused from the very beginning, failing to clarify the thought process of the engineering project. … Read more
Many believe that the electrical automation industry is favorable, but in reality, it is quite challenging. Let’s start with the essential skill – PLC programming. PLC, the brain of industrial control devices, is essentially standard equipment. However, this brain, like humans, has a “nationality” distinction, which for PLCs means – brand. Each brand develops its … Read more
Siemens S7-1500 PLC Direct Addressing vs Indirect Addressing: Complete Comparison and Examples 1. Core Differences Comparison Table Feature Direct Addressing Indirect Addressing Definition Fixed specific address hardcoded in the program Dynamic calculation of address in the program Syntax L MW10 L ID[AR1,P#0.0] Address Source Hardcoded (e.g., MW10) Pointer variables/registers (AR1/AR2) Flexibility Low (requires program modification) … Read more
“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 most essential and efficient path for non-electrical professionals to transition is to follow the cycle of “theory-practice-proof”, which has been validated by reality. Below is a detailed action plan: 1. Low Voltage Electrician Certificate: This is not just a shortcut, but also a “safety pass”. The special operation certificate for low voltage electricians, commonly … Read more
LearningPLC programmingrequirescertainbasic electricalknowledge.What are the specific requirements?Today, I will discuss this. 1.Electrical Safety: As long as you are considering a career in the electrical automation industry,regardless of whattechnology you learn, the first priority isto havea sense of safety,and tohave respect for the field. 2.Relays and Control Circuits: I recommend that everyone buya switching power supply,several … Read more