Anyone engaged in electrical work knows that industrial production and technological development are inseparable from the automation control of PLCs. PLC can be broadly understood as a centralized relay extension control cabinet. In practical production applications, PLC greatly reduces the cost of industrial control and enhances centralized management and automatic control of equipment. To master … Read more
The common uses of PLCs include replacing relay logic control circuits in electrical control systems. For example, motor control, switchgear automatic transfer between municipal power supply, and control of backup generators, as well as process control DCS systems and building fire protection systems, etc. Generally, the water pressure control in high-rise residential buildings in urban … Read more
Search on WeChat Jicheng Training Many beginners find learning PLC quite challenging, perhaps because they haven’t mastered the correct methods. Learning PLC isn’t as difficult as you might think. Whether you are a beginner, have no background, are an electrician, or want to improve your learning efficiency, if mastering this method could enable you to … Read more
1. What Is PLC? The International Electrotechnical Commission (IEC) defines PLC as: A programmable logic controller is an electronic system that performs digital operations and is designed for applications in industrial environments. It uses programmable memory to store instructions for executing logic operations, sequential control, timing, counting, and arithmetic operations, and controls various types of … Read more
Search on WeChat Technical Training What PLC Programming Software is Available? 1. Omron PLC Programming Software Omron PLC programming software integrates CX-Programmer V9.5, providing comprehensive software support for Omron PLC programming, fully supporting 32/64-bit WIN8 systems, and available in multiple languages, including Simplified Chinese. It can configure networks, programmable terminals, servo systems, electronic temperature controls, … Read more
Search on WeChat Jicheng Training If you’ve had any experience with PLC programming, you’ve probably heard terms like self-locking, interlocking, and mutual locking. These are typical fundamental programming steps in PLC programming that we must master. Below, I will share several of the most classic small programs. 1. Self-Locking (Start-Stop Control) Self-locking requires a normally … Read more
Search on WeChat Technical Training Definition of PLC A programmable logic controller (PLC) is a digital operation electronic system designed for use in industrial environments. It uses programmable memory to store instructions for performing logic operations, sequential control, timing, counting, and arithmetic operations, and controls various types of machinery or production processes through digital and … Read more
1. Start-Stop Control Circuit Control requirements: Press the start button (I0.0 is ON), Q0.0 is ON; Press the stop button (I0.1 is OFF), Q0.0 is OFF. The ladder diagram is shown in Figure 1. Figure 1 Start Priority 2. Interlock Control Circuit In the interlock circuit shown in Figure 2, I0.0 and I0.1 are the … Read more
The basic working method of a PLC is to sequentially execute the user program, executing one instruction per clock cycle. There are generally two types of execution for the user program: cyclic scanning and timed scanning. The scanning process is divided into three stages: input sampling stage, program execution stage, and output refresh stage, as … Read more
Today, I will share with you the content about PLC, giving you a simple introduction to PLC. I will briefly introduce the following five points. 1. First, let’s talk about what a control system and a controller are. Whether in the industrial field or in real life, such as air conditioners, humidifiers, refrigerators, elevators, or … Read more