PLC

This article compares five important industrial communication protocols used in process automation: PA (PROFIBUS Process Automation), FF (Foundation Fieldbus), DP (PROFIBUS DP), HART (Highway Addressable Remote Transducer), and BRAIN. These protocols enable the communication between various field devices, sensors, actuators, and controllers, each designed for different industrial needs and environments. 1. Definitions and Origins PA […]

1. How to distinguish between major and minor faults? Issue: The distinction between major and minor faults lies in the system’s response. For minor faults, the system emits an alarm signal, and the fault indicator flashes. For major faults, the system emits a fault signal, the fault indicator stays on, and it sends a command

In industrial, engineering, and scientific research fields, temperature is a critical parameter. Whether it is chemical reactions, physical processes, or machine operations, temperature directly affects efficiency, safety, and sustainability. Specifically, three key temperature concepts—medium temperature, process temperature, and ambient temperature—are crucial in designing, monitoring, and optimizing various equipment and systems. This article will explore these

Introduction Measuring instruments play a crucial role in industrial automation, ensuring accuracy, efficiency, and safety across various processes. Whether monitoring liquid levels in storage tanks or detecting materials in silos, selecting the appropriate measuring instruments is essential for the smooth operation of industrial plants. This article explores key categories of measuring instruments and highlights the

Programmable Logic Controllers (PLCs) are the backbone of industrial automation, controlling processes and machinery across various industries. As a PLC engineer, working on-site involves a variety of tasks, from installation and programming to troubleshooting and maintenance. To ensure smooth operations, engineers must be equipped with the right tools and instruments. This article will provide a

Introduction In industrial process control, achieving optimal automation and system performance is a constant challenge. Advanced control strategies have been developed to enhance traditional control methods. Generally, when advanced control is implemented in a Distributed Control System (DCS), it is based on complex control strategies built upon Proportional-Integral-Derivative (PID) controllers. However, when using Model Predictive

In a Programmable Logic Controller (PLC), input and output relays play crucial roles in enabling the system to interact effectively with external devices and execute control tasks. This article provides a detailed explanation of the roles and functions of input and output relays, along with examples to illustrate their applications in industrial automation. Input Relays

Introduction to SIL (Safety Integrity Level) Safety Integrity Level (SIL) is a key standard used to assess the reliability of Safety Instrumented Systems (SIS). SIL ensures that these systems effectively prevent hazardous events from occurring when failures happen. The design and assessment of SIL are based on failure rates, failure mode analysis, and the reliability

Introduction In the field of industrial automation, two critical control systems are often discussed: DCS (Distributed Control System) and PLC (Programmable Logic Controller). Both play essential roles in modern industries, each with its unique features and advantages. Understanding the differences between these two systems is crucial for selecting the appropriate one for specific applications. This

IntroductionA Distributed Control System (DCS) is a critical component in modern industrial automation, especially in heavy industries such as petrochemicals, power generation, steel production, and paper manufacturing. It plays a crucial role in automating control and monitoring of complex production processes, improving efficiency, and ensuring production stability. Despite the many advantages of DCS in terms