PLC

Introduction Proportional-Integral-Derivative (PID) control has been a cornerstone of industrial automation since its invention. Despite its long history, modern industry has transformed significantly, requiring control algorithms to adapt and optimize performance under new conditions. In this article, we will explore the historical development of PID control, the challenges it faces in contemporary applications, and the […]

Introduction Programmable Logic Controllers (PLCs) are widely used in industrial automation, making them an essential skill for many engineers and technicians. While some find PLCs challenging to learn, understanding the right methods can simplify the process significantly. This guide outlines practical steps to help anyone master PLCs efficiently. 1. Understand the Basics To begin learning

When advanced control specifically refers to multivariable model predictive control (MPC), it is not always necessary for every application. Advanced control has become a popular algorithm in process industries, especially in chemical manufacturing, due to the complexity of these industrial systems. The challenges associated with multivariable dynamic constraints and the difficulty of coordinated optimization make

Many consider Advanced Process Control (APC) to be a superior alternative to the traditional Proportional-Integral-Derivative (PID) controller. However, the reality of industrial applications is that the selection of control strategies is not solely determined by whether an algorithm is labeled as “advanced,” “intelligent,” “adaptive,” or “optimal.” Instead, the primary concern of industry practitioners is cost-effectiveness.

In the wave of Industry 4.0 and smart manufacturing, advanced technologies such as online analyzers, the Internet of Things (IoT), AI models, and digital twins are continuously emerging. However, the fundamental principles of manufacturing have remained unchanged: Process, Equipment, Operations, and Control are the four critical elements of production. Understanding and respecting the interplay between

Heat control (heat control, or “thermal control”) is critical for the safe, efficient, and reliable operation of power plants. Precise heat control ensures that systems operate within optimal parameters, minimizes energy loss, and prevents equipment damage. Below are ten comprehensive measures to guarantee heat control accuracy: 1. Regular Calibration and Maintenance of Measurement Instruments Measurement

Distributed Control Systems (DCS) are critical for ensuring the stable and efficient operation of industrial processes. This guide outlines best practices for regular inspections, maintenance routines, and effective troubleshooting techniques. 1. DCS System Inspection 1.1 Regular Inspections Frequency: Conduct inspections twice daily at designated times. Purpose: Identify potential issues proactively, ensuring uninterrupted operation. 1.2 Cleaning

In industrial process control, achieving optimal system performance often depends on the use of advanced control methods. Two widely used techniques are PID (Proportional-Integral-Derivative) control and APC (Advanced Process Control). Each has its unique principles, applications, and advantages, making them suitable for different operational scenarios. This article delves into the details of PID and APC

Introduction Water level control is a critical process in industrial applications, particularly in boiler systems, where maintaining an optimal water level is essential for efficiency and safety. Among the various control strategies, Single-Element Control and Three-Element Control are two commonly used techniques. This article provides a detailed comparison of these control methods, their working principles,

1. AI Signal (Analog Input) Definition: AI stands for Analog Input, which refers to continuous signals that represent varying physical quantities in industrial control systems. Characteristics and Sources: Analog signals are continuously varying electrical signals, commonly in the form of current (4-20mA) or voltage (0-10V, 1-5V). These signals originate from various field devices, such as: