Currently, most industrial control systems are embedded systems (a few simple systems use bare metal development directly). An “embedded system” refers to a computer system with specific functions embedded within specific hardware. Embedded systems generally consist of a real-time operating system (RTOS) + application software (a PLC itself is also an embedded system). Common real-time … Read more
When consulting with clients in various industries, they often ask a question: “Our industrial control system is already isolated from the Internet and is essentially an island, with no data or information coming in. Why do we still need to build network security?” In response to this question, I explain to clients the following points, … Read more
The security standards for industrial control systems are an important part of the security assurance system for industrial control systems. They play multiple roles in promoting, standardizing, and guiding the security protection work of industrial control systems in various industries. Due to the late overall start of the security protection construction for industrial control systems … Read more
PLC controllers, also known as Programmable Logic Controllers, are electronic devices designed specifically for digital computation operations in industrial production. Why is the PLC controller considered the core force of industrial control systems? Because it can achieve various controls and connect to computers for communication. What control functions can the PLC controller achieve? There are … Read more
Grade protection is an important policy for national information security construction, which focuses on constructing, managing, and supervising information systems according to their grade and standards. For industrial control security construction, it should center around moderate security and prioritize key protection, focusing on important business systems from a business perspective. The following principles should be … Read more
Today, let’s talk about the real-time data processing and task scheduling mechanism in Mitsubishi PLCs. These two concepts sound impressive, but they essentially refer to how PLCs can timely process data and arrange various tasks. This is crucial for industrial automation! Real-Time Data Processing: PLC’s “Sixth Sense” Basic Concept Real-time data processing simply means that … Read more
With the rapid development of industrial technology, distributed control systems and fieldbus control systems have emerged one after another. In some industries, some people believe that FCS is developed from PLC, while others believe that FCS is developed from DCS. There is a close connection between FCS, PLC, and DCS, yet there are essential differences. … Read more
Search on WeChat Technical Training With the rapid development of industrial technology, distributed control systems and field control systems have emerged. The three major control systems in industrial process control are PLC, DCS, and FCS. Some people believe that FCS has developed from PLC, while others think it has evolved from DCS. FCS, PLC, and … Read more
As a veteran in industrial control with over ten years of experience, I often see many beginners struggling to understand function blocks in PLC programming. Today, I will systematically walk you through the most commonly used function blocks in PLCs. Mastering these basic function blocks will enable you to handle about 80% of industrial control … Read more
The most comprehensive free industrial control software is here! Want to engage with me? (Click the red text above to get the materials for free) RS-232, RS-422, and RS-485 are serial data interface standards. RS-232 is the most widely used serial interface for PCs. It is defined as a single-ended standard for increasing communication distance … Read more