PLC

PID control, which stands for Proportional-Integral-Derivative control, is one of the most widely used methods in industrial process control systems. It is used to control a wide range of systems such as temperature regulation, motor speed, fluid flow, and more. The PID controller adjusts an output variable based on the error between a desired setpoint […]

Weighing module is a new type of weighing element, which combines weighing sensor, load transfer device and mounting connector together, and can be easily connected with mechanical devices of various shapes, such as vertical tank, trough tank, hopper, etc. According to its shape, it can be mainly divided into cantilever beam type, circular plate type,

Troubleshooting ground faults in emergency shutdown signal cables requires a structured approach to ensure efficiency and safety. This process can be broken down into several key stages: preparation, step-by-step cable inspection, the use of diagnostic tools, and dealing with special cases. Below is a detailed explanation of each step, followed by important precautions to follow

Fieldbus is a critical communication technology in the field of industrial automation. It connects sensors, actuators, controllers, and other field devices directly to the control system via a digital network. Serving as a revolutionary alternative to traditional point-to-point wiring, Fieldbus adopts a bus-topology structure that establishes a high-speed communication channel for real-time data exchange between

Introduction Safety relays play an important role in modern automation systems. They are designed to protect the safety of personnel and equipment. Compared with ordinary relays, safety relays have more advanced functions and technologies, can detect faults and provide double safety protection. This article will introduce the basic concepts of safety relays, including their working

In the operation of a distillation column, temperature control plays a critical role in ensuring the separation and purity of the product. The original temperature control scheme, designed to use reflux control to regulate the top of the column temperature, has proven to be inadequate under certain operating conditions. Experience has shown that when the

Programmable Logic Controllers (PLCs) are essential components of industrial automation systems. A PLC is a specialized digital computer designed to control and monitor industrial processes and machinery. It is programmed to execute a sequence of operations, such as switching on/off devices, measuring variables like temperature or pressure, and communicating with other systems. Due to their

Introduction Distributed Control Systems (DCS) have become an indispensable technology in modern industrial automation, widely used in industries such as oil, chemicals, and power generation. As the demands for industrial automation continue to grow, the load capacity of DCS systems faces increasing challenges. To effectively meet large-scale control needs, relays, a simple yet efficient electrical

In today’s era of rapid industrial transformation, the construction of smart factories has become a widespread initiative across various industries. Many enterprises, particularly in the non-ferrous metal sector, are investing heavily in automation technologies and digitalization tools in pursuit of higher efficiency, productivity, and reduced reliance on manual operations. The prevailing belief is that the

When troubleshooting a 4-20mA loop disconnection, it is essential to follow a systematic approach. The following sections outline the primary diagnostic methods that instrument technicians should be familiar with: 1. Visual Inspection Inspect the Cables: Check the cables in the loop for any visible damage, fractures, aging, or corrosion. Pay particular attention to areas where