Abstract: The arrival of the Industrial 4.0 era, characterized by the deep integration of information technologies such as computing, communication, and control, has brought new opportunities and challenges to the research on security issues of networked control systems. The aim of research on networked control system security is to establish a complete system security defense … Read more
With the development of computer technology, new electrical control systems based on technologies such as Programmable Logic Controllers (PLC), variable frequency drives, servo drive systems, and computer communication and configuration software have gradually replaced traditional relay control systems and are widely applied in various industries. Among them, Siemens and Mitsubishi’s PLCs, variable frequency drives, touch … Read more
Content The programming languages of PLCs have distinct characteristics compared to general computer languages. They differ from high-level languages and general assembly languages, needing to be easy to write and debug. Currently, there is no programming language that is compatible with products from all manufacturers. For example, Mitsubishi has its own programming language, while OMRON … Read more
With the development of computer technology, new electrical control systems based on technologies such as Programmable Logic Controllers (PLC), frequency converters, servo drive systems, and computer communication and configuration software have gradually replaced traditional relay control systems and are widely used in various industries. Among them, Siemens and Mitsubishi’s PLCs, frequency converters, touch screens, and … Read more
S7-200 and Weintek Touch Screen Communication Setup 1. S7-200 Communication Setup ① Set the system block and the PLC address ② Set the PG/PC interface ③ About the 6ES7 972-0BC20-0XA0 driver issue (Refer to the installation issues of the PC Adapter USB on Windows 7) 2. Weintek Touch Screen Setup (Content sourced from the internet, … Read more
Click↑↑Jicheng Training, follow and pinto subscribe for free long-term 180,000+industrial control people follow this WeChat platform: technical sharing, learning exchange, industrial control videos PLC networks are composed of several levels of subnets, and the communication process of each level is determined by communication protocols, while the communication methods are the core content of these protocols. … Read more
1. Overview of MODBUS Communication The MODBUS protocol is divided into MODBUS protocol over serial links and MODBUS protocol based on TCP/IP. The serial link MODBUS protocol includes MODBUS ASCII (string) and MODBUS RTU. The MODBUS protocol library provided by 200SMART supports MODBUS RTU communication. MODBUS RTU sends data in hexadecimal values. MODBUS ASCII sends … Read more
This article is an excellent piece from the Kexue Forum. Kexue Forum Author ID: wmsuper In industrial control systems, to prevent unauthorized modifications to configuration project files, many configuration software support encryption of project files. When opening a password-protected configuration project file, it is necessary to enter the correct password to view and edit the … Read more
Search on WeChat Technical Training Introduction Siemens is a globally renowned provider of automation solutions, and its PLC (Programmable Logic Controller) series products are widely used in industrial control. Different series of PLCs vary in functionality, performance, and application scope. This article will detail the characteristics and differences of each Siemens PLC series. 1. S7-200 … Read more
Due to various environmental impacts such as the international pandemic, trade friction, and local wars, the supply and demand of domestic chips have been imbalanced, and prices continue to rise. The lack of key raw materials or extended delivery times is bound to lead technology companies that rely on electronic hardware to face developmental difficulties. … Read more