Practical Task:There are three motors that need to be started sequentially with a 10-minute interval. Each motor runs for 2 hours before automatically stopping. There is a stop button that can halt the operation of all motors. Write a PLC program.Steps:1. Assign I/OStart X0; Stop X1; Motor A uses Y0; Motor B uses Y1; Motor … Read more
In the field of industrial automation, PLCs (Programmable Logic Controllers) serve as core control devices, and their programming capabilities directly determine the stability and efficiency of automation systems. This article presents a classic case of material handling cart control program design, showcasing the programming ideas and practical techniques of the Mitsubishi FX series PLC from … Read more
After downloading the prepared program to the PLC, it begins to scan the user program, which is its core function. The entire scanning process is referred to as a scan cycle, as shown in the figure below. First, it detects the input signal X, then scans the program, such as the ladder diagram, and temporarily … Read more
(Thanks to everyone for your likes and appreciation. If this article resonates with you, please “like” and “recommend” it, thank you all!) Task Introduction In the field of industrial control, sequential control is one of the core skills of PLC programming, especially suitable for equipment that operates in a fixed process, such as machine tool … Read more
Learning PLC programming is most satisfying when you can implement the “light flashing logic”! Today, we will break down the tower flashing light case, from requirement analysis to program writing, guiding you step by step to achieve it, even beginners can follow along~ 1. Requirement Analysis: How Does the Light Flash? Clarify the Steps First … Read more
Today, we will discuss the story of converting a motor sequential start/stop circuit into a PLC ladder diagram, suitable for those who want to get started with PLCs. The requirement is that you must first be able to understand the circuit diagram, and then we will proceed. Here is the sequential start/stop circuit diagram: Traditional … Read more
After years in automation, I find it unbearable to deal with newcomers who can’t even grasp the basics of sequential control. Just the other day, I encountered a novice in electrical engineering whose Siemens sequential control program was a complete mess, and after running it for a long time, nothing was accomplished, which made me … Read more
Click the blue text to follow us How to Achieve Sequential Control with PLC? A Beginner’s Guide In industrial automation, sequential control is a very common task, such as product assembly on an assembly line or multi-step operation control of packaging machines. Today we will discuss how to achieve sequential control using PLC, guiding you … Read more