Click the blue text to follow us 1 Task Objective This task focuses on the analog functionality of the Siemens S7-1200 PLC, with the core scenario being “analog control of Delta frequency inverter to achieve motor speed control”. The analog module of the S7-1200 PLC can achieve dual functions: First, it outputs analog signals to … Read more
Click the blue text PLC Automation Hub Follow us Master ST language to make your PLC programming more efficient and intuitive What is ST Language? ST (Structured Text) is a high-level PLC programming language that resembles Pascal or C language, adopting a structured programming approach. Compared to Ladder Diagram, ST language is more convenient and … Read more
Basic instructions for the Siemens S7-1200 PLC. For beginners, mastering these basic instructions is the cornerstone of building complex automation programs. We will categorize them by function and explain with simple examples. Please note that all instructions are used in Siemens TIA Portal (Totally Integrated Automation Portal).1. Preparation before programming: Understanding the TIA Portal interface1. … Read more
Stop struggling with complex PLC logic and typing code line by line! Here’s a secret: your programming “superhero” teammate is now online! When the German industrial powerhouse — Siemens S7-1200 PLC meets the domestic AI “strongest brain” — DeepSeek, a revolutionary programming transformation is taking place. This is not just talk! I will guide you … Read more
Keywords: Ladder Diagram, Programming Basics, Motor Start/Stop, Self-Locking, Program Download Introduction After getting acquainted with the hardware of the PLC, we are finally going to start “programming”! This article will guide you through a classic introductory experiment: Motor Start/Stop Control. Through this example, you will understand how PLC programs work and learn to use the … Read more
In non-standard automation projects, the delivery of equipment is just the beginning; the real test lies in subsequent maintenance. A standardized PLC program not only allows maintenance engineers to quickly get up to speed but also significantly reduces equipment failure rates and maintenance costs. Naming Conventions: Let the Program “Speak for Itself” The Golden Rules … Read more
(In the control room of a food factory’s packaging line, Xiao A frowns at the ladder diagram on the PLC programming software, noticing that the counting function of the packaging machine is always inaccurate, with the number of cookie packages counted per hour being consistently less by more than 10 packages. Engineer Zhang approaches with … Read more
Why do I need to write another book titled “Practical Guide to ST Structured Text Language PLC Programming” as I discussed earlier? After mentioning this idea, it is quite a challenge for me personally. Once completed, I hope it can truly help the engineers who are working hard in the field of PLC programming! Therefore, … Read more
