9 Common Network Commands, Very Practical! 1. ping Command PING (Packet Internet Groper), the Internet packet explorer, is a program used to test network connectivity. Ping operates in the TCP/IP network architecture at the application layer, primarily sending ICMP (Internet Control Message Protocol) Echo request messages to a specific destination host to test whether the … Read more
Author Introduction: Zhang Haiqing, Qingdao Chengyang District Vocational Secondary School, Level 1 Teacher, Master’s Degree, Research Direction in Information Technology Teaching Design (266108). Paper Published In: China Educational Technology Equipment, 2018,05 1 Introduction With the increasing application of new technologies such as cloud computing, big data, the Internet of Things, and mobile computing, the revolutionary … Read more
On July 7, at the Third China IPv6 Innovation Development Conference, Wu Jianping, Academician of Tsinghua University and Deputy Director of the Expert Committee for Promoting IPv6 Large-scale Deployment and Application, delivered a keynote speech titled “The Important Content of IPv6 Innovation Development: Self-Reliance in Core Technologies for the Next Generation Internet.” 2024 marks the … Read more
/ Network Layered Structure / Consider the simplest case: communication between two hosts. At this point, only a single network cable is needed to connect the two, specifying their hardware interfaces, such as both using USB, 10v voltage, and 2.4GHz frequency. This layer is the physical layer, and these specifications are the physical layer protocol. … Read more
Introduction PLC (Programmable Logic Controller) was initially just a digital logic controller with a microprocessor for automation control. With the development of programmable logic programs, PLCs have become widely used in the industrial control field, evolving into programmable automation devices similar to compact computers, replacing the numerous relays and counters in automated control systems. PLC … Read more
For laymen, you can simply understand ports as the exit for communication between a computer and the outside world. However, in network technology, ports generally have two meanings: (1) Ports in Hardware Devices Such as interfaces in switches and routers used to connect other devices. (SC ports, etc.) (2) Ports in TCP/IP Protocols Such as … Read more
Search on WeChat Technical Training There are various communication methods between Siemens WINCC and Siemens PLC. Below are two commonly used communication methods. 1. Using a standard network card to communicate with the PLC via TCP/IP. The prerequisite for connecting WINCC with the PLC system through Ethernet is that the PLC system is configured with … Read more
Nowadays, whether in security engineering or weak current engineering, the connection with networks is becoming increasingly close. Among the basic knowledge of networks, the ping command is the most frequently used in projects. Generally, we only use its basic functions. Today, let’s take a detailed look at the 7 basic uses of the Ping command, … Read more
A Comprehensive Explanation of Computer Network Principles Introduction Hello everyone, I am Tai Dou Xian Ruo Ru, a content creator focused on explaining technology in simple terms. This time I will share knowledge related to the principles of computer networks. I believe the content of this article is already very easy to understand, and I … Read more
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