Key Knowledge Points in Chapter One: Understand the characteristics, classifications, developments, and applications of embedded systems, and be familiar with the logical components of embedded systems. Understand the main types of embedded processing chips, be familiar with the development process of SoC, and grasp the significant importance of IP cores. Be familiar with the encoding … Read more
-Begin- ModbusTCP Protocol Analysis ModbusTCP has the same message format as ModbusUDP; the difference between them is essentially the difference between TCP and UDP. Therefore, we will analyze the ModbusTCP protocol below. The differences between ModbusTCP and ModbusRtu (ModbusASCII) are shown in the figure below: As can be seen from the figure above, ModbusTCP, based … Read more
Introduction Modbus was developed byMODICONin 1979 and is a standard forindustrial fieldbus protocol. In 1996, Schneider Electric launched the Modbus protocol based on Ethernet TCP/IP: Modbus TCP. The Modbus protocol is an application layer messaging protocol that includes three types of messages: ASCII, RTU, and TCP. The standard physical layer interfaces for Modbus protocol include … Read more
1. Related to MAC Frame (Simple Simulation to Build MAC Frame) Ethernet Header Structure Definition (C Language) #include <stdio.h> #include <stdint.h> // Ethernet header structure typedef struct { uint8_t destination_mac[6]; // Destination MAC address, 6 bytes uint8_t source_mac[6]; // Source MAC address, 6 bytes uint16_t ether_type; // Ethernet type, e.g., 0x0800 indicates IP protocol } … Read more
Forum Weekly 21 Jan 2022 This week’s highlights: 1. Microcontroller + WiFi Module and Siemens S7-200 Smart for Modbus TCP Ethernet Communication 2. Self-drawn – 24V regulated positive and negative 12V switching power supply schematic! 3. Self-written Tetris, Botu V16 4. How to make the servo motor rotate freely while powered on? 5. S7 200 … Read more
Click the blue text above Follow us! Electronic products are continuously improving our interaction with automobiles. As integrated navigation or hands-free calling is no longer an exciting new feature, we have made significant progress. Today’s vehicles are equipped with innovative technologies and utilize hundreds of thousands of semiconductors to enhance intelligence, electrification, and safety levels. … Read more
Click on the above“Motion Control Assistant”, stay updated with new developments! “ Friends, we are back. In the last issue, we briefly introduced some features of EtherCAT. This time, we will provide a more detailed introduction to the implementation of EtherCAT, the significance of the communication cycle, and concepts such as SDO and PDO. First, … Read more
Qicheng Automation Pragmatic + Reliable automation training service provider Training Projects：PLC System Integration + Motion Control + Robotics + Machine Vision Providing professional automation project implementation and system integration services Simply put, PROFINET = PROFIBUS + Ethernet, transferring the master-slave structure of PROFIBUS to Ethernet. Therefore, PROFINET will have Controllers and Devices, and their relationship … Read more
1. Product Introduction In some factories, certain situations, and applications, due to some objective factors, wiring is inconvenient. Therefore, Beichen’s S series wireless modules are very suitable. By placing the S series wireless modules in a stable industrial wireless (AP) network environment, PLC data acquisition and device networking can be achieved. The S series is … Read more
Etching NIAK_2 Industrial PC 1. Industrial PC Equipment Description 1.1 Model The Etching NIAK_2 control uses the SIMATIC IPC427D industrial PC 1.2 PC Interfaces 1.3 LED Status Display 1.4 Features 1.5 Device Identification 2. Industrial PC Hardware and Software Installation 2.1 External Device Connection 1. During PC operation, hot-swappable I/O devices (USB) can be connected; … Read more