For those just starting with PLCs, mastering the programming language and understanding instructions is one of the fundamental conditions. Regardless of how different your programming habits are from others, you must learn this element of instructions, as programming cannot do without its components. Below, let’s take a look at the extent of the application of … Read more
PLC Programming Algorithm (1) In PLCs, there are three main quantities:Switching Quantity, Analog Quantity, Pulse Quantity. Once you understand the relationship between these three, you will master PLCs proficiently. 1. Switching Quantity also known as logical quantity, refers to two possible values, 0 or 1, ON or OFF (Switching quantities only have two states 0/1, … Read more
Currently, there are 5 standard programming languages for PLCs, including graphical programming languages and textual programming languages. Graphical programming languages include: Ladder Diagram (LD); Function Block Diagram (FBD); Sequential Function Chart (SFC). Textual programming languages include: Instruction List (IL) & Structured Text (ST). The programming languages of IEC 1131-3 were formed based on the reasonable … Read more
Search WeChat Technical Training Design Requirements for a Perfect PLC Program A complete PLC program is not just about getting the system to run; it also requires complete comments, excellent architecture, good scalability, a comprehensive alarm protection system, and a simulation system before operation. 1. Simplicity Keep the PLC program as simple as possible. Simplicity … Read more
The programming language for PLC software has distinct characteristics compared to general computer languages. It is neither a high-level language nor a typical assembly language, and it must meet the requirements for ease of writing and debugging. Early PLCs supported only ladder diagram programming language and instruction list programming language. According to the International Electrotechnical … Read more
Search WeChat Technical Training 【Introduction】 For skilled PLC engineers, the program writing focuses on the following two points. 1. Content of PLC Programs The PLC application program should maximize the control requirements of the controlled object. After conceptualizing the framework of the main program, it should be the main line to write the programs that … Read more
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