The Data Link Layer Has Three Purposes: To send and receive IP datagrams for the IP module. To send ARP requests and receive ARP responses for the ARP module. To send RARP requests and receive RARP responses. Everyone has heard of IP. As for ARP and RARP, ARP stands for Address Resolution Protocol, which is … Read more
Basic Concepts of Ethernet Before performing Ethernet communication, it is necessary to understand several basic concepts of Ethernet communication, such as IP address allocation, PC network address and settings, etc. Allocating IP Address If the programming device (such as PC) connects to the factory LAN (or the Internet) using a network card, then the programming … Read more
This chapter mainly introduces the MODBUS TCP communication protocol and the content of free format communication protocols. 1. Overview of MODBUS TCP Communication MODBUS TCP combines the Ethernet physical network and the network standard TCP/IP with MODBUS as the application protocol standard for data representation. MODBUS TCP communication messages are encapsulated in Ethernet TCP/IP packets, … Read more
Introducing the setup of the TP-Link wireless router. The demonstration is based on a brand new router. If you are unsure whether the router has been configured previously, it is recommended to reset the TP-Link wireless router. The correct method to reset the TP-Link wireless router: While the router is powered on, press and hold … Read more
Author | Tianrongxin 1. Overview EtherCAT (Ethernet for Control Automation Technology) is a real-time industrial fieldbus communication protocol based on Ethernet, originally developed by Beckhoff Automation GmbH in Germany. It was introduced to the market in 2003, became an international standard in 2007, and became a national standard in China in 2014. The emergence of … Read more
Search on WeChat Technical Training Siemens, as one of the earliest industrial control manufacturers to enter the Chinese market, has maintained a very high market share. Siemens PLCs have excellent quality, and their network stability and openness are favored by industrial control personnel. Moreover, the variety of programming software is convenient to use, making it … Read more
Understanding the Differences Between Profibus, Profinet, and Ethernet Ethernet is a well-known network standard created by Xerox and developed in collaboration with Intel and DEC. It is the most widely used communication protocol standard for local area networks today, including standard Ethernet (10Mbit/s), Fast Ethernet (100Mbit/s), and 10G Ethernet (10Gbit/s). PROFIBUS is an international, open, … Read more
Multiple How to Exchange Signals Between Multiple PLCs? Previously, I discussed that in some large smart factories, a single or multiple large PLCs usually form the processing core.The advantage of a single PLC is that all important equipment needs to be controlled by this unified core, allowing for high integration of information. However, large PLCs … Read more
Qinheng, based on its self-developed Qingke RISC-V microprocessor and professional connection technologies like USB, Bluetooth, and Ethernet, has created a product matrix that combines a full-stack MCU with multi-dimensional and multi-layered interface chips without kernel and PHY technology licensing fees and commissions. In addition to a rich lineup of USB interface chips, the Ethernet product … Read more
Follow our official account, click the top right corner of the official account homepage “ ··· ”, set it as a star, and get real-time updates on the latest news in intelligent automotive electronics and software. Source: Yanzhi Intelligent Automotive Author: Yanzhi Follow our official account, click the top right corner of the official account … Read more