Detailed Explanation of Modbus-RTU Message Structure and Common Function Codes Modbus is a serial communication protocol that was published by Modicon (now Schneider Electric) in 1979 for communication with programmable logic controllers (PLCs). The Modbus protocol has now become the industry standard for communication protocols in the field of industrial control and is commonly used … Read more
There are many ways to set custom programs to start automatically on boot in Linux systems. The method described in this article is to set the program as a service for automatic startup.Create a new hello.service file in the /lib/systemd/system directory. touch /lib/systemd/system/hello.service vim /lib/systemd/system/hello.service [Unit] Description=Hello Service [Service] Type=simple ExecStart=/usr/bin/hello.sh SuccessExitStatus=2 [Install] WantedBy=multi-user.target Note … Read more
Recently, in the laboratory of the School of Materials Science and Engineering at Wuhan University of Technology, the hot press machine roared as it mixed, pressed, disassembled, and tested the performance of a high-frequency, high-speed, low-loss copper-clad laminate that was “ejected” by the machine. “The quality of 5G network signal transmission is crucially dependent on … Read more
Why does industrial automation need a “language”? With the advent of Industry 4.0, various automated factories have emerged, where different machines collaborate to perform high-intensity tasks with minimal errors. So how do these numerous industrial devices “understand” each other’s language? When a conveyor belt transports materials to a loading point, how does the gripper hear … Read more
【Question 1】Do SIS and DCS valves need to be set up separately? Can SIL1 and below be shared? 【Answer】1）Refer to “Design Specifications for Safety Instrumented Systems in the Petrochemical Industry” (GB/T 50770-2013): Measurement and actuators are best set up independently. When control valves are shared, it should ensure thatSIS takes priority. 2）Refer to “Acceptance Specifications … Read more
The Perfect Partnership of Modbus Protocol and RTU RTU (Remote Terminal Unit) serves as the “nerve center” for data acquisition and control in the field of industrial automation, while the Modbus protocol is its most reliable “communication language”. The design philosophy of Modbus is “simple, efficient, and practical”. It employs a master-slave communication model with … Read more
1. What is MODBUS?1. Basic Concepts MODBUS is a communication protocol initially advocated by MODICON (now a brand of Schneider Electric). It has gradually been recognized as a standard communication protocol through practical applications by most companies. As long as data communication or transmission follows this protocol, different systems can communicate with each other. Currently, … Read more
Delta Medical Power: Innovative Technology Driving the Future of Medical Devices Delta’s standard power supplies showcase a rich variety of innovative medical power products, demonstrating profound technical accumulation in the medical field and a deep understanding of the power supply needs of medical devices. 01 Open-frame MEP Series Medical Power Supplies Delta MEP – 600A24J … Read more
On October 7, a large-scale conflict broke out between Israel and Palestine.On that day, the Palestinian Islamic Resistance Movement (Hamas) announced a military operation against Israel, launching thousands of rockets and sending armed personnel into Israeli territory to engage in clashes with the Israeli military. In response, the Israeli military conducted multiple airstrikes on the … Read more
Automotive professionals should pay attention At a recent forum on intelligent connected vehicles, several industry insiders revealed that driven by policies and regulations, ADAS (Advanced Driver Assistance Systems), which has become a hot topic in the industry this year, will receive more attention in 2017. Meanwhile, startups engaged in the research and production of ADAS, … Read more