The fundamental basis of data communication in today’s IP networks is the TCP/IP reference model. Today, we will use a PC to access a WEB server to deeply understand the TCP/IP reference model. As the article is quite lengthy, it is recommended to save it for later reading. TCP/IP Reference Model Computer Network: Simply put, … Read more
On a summer day in Shanghai, a child takes a nap. TCP/IP is essentially something that most programmers in the internet industry cannot do without. Unfortunately, I have found that many people have only a superficial understanding of TCP. The better ones know it exists but do not understand the underlying principles, which leads to … Read more
Author: Lan Lan Source: Warm Blue Notes This article mainly reviews common attacks on TCP/IP, providing at least a basic understanding. Introduction Introduction 1. IP Spoofing What is IP? In a network, every device is assigned an address. This address is like the home address of Xiao Lan, “number room“, where the “number” corresponds to … Read more
Compliance with protocol standards is the foundation for seamless interaction among devices from different manufacturers within the same network, commonly referred to as interoperability. Interoperability is crucial for the success of communication technologies. Therefore, the EtherCAT Technology Group places great importance on the conformance of EtherCAT devices: all ETG member companies commit to using the … Read more
Click the blue text to follow us 1. Concept and Background: EtherCAT (Ethernet for Control Automation Technology) is a high-performance industrial Ethernet communication protocol widely used in the field of industrial automation. It was introduced by the German company Beckhoff in 2003 and standardized by IEC as an international standard (IEC 61158-2). EtherCAT has become … Read more
Application Environment: SoMachine: V4.3 LMC058 FW: 4.0.3.6 LMC058 SW: 4.0.3.7 LXM28 FW: 1.6.2.0 LXM28 SW: 1.75.17 The homing function block in CANopen mode is as follows: Detailed explanation of the homing mode (HomingMode) is as follows: 1: After the homing process starts, the motor runs towards the reverse limit (first speed segment). Upon reaching the … Read more
1 Robotic Arm System Structure The robotic arm system includes a computer control terminal, a visual positioning module, a USB to CAN module, and an electric joint module, as shown in Figure 1. Figure 1: Robotic Arm System Structure The visual positioning module provides a description of the end effector’s position in Cartesian space. This … Read more
CANopen / Modbus Master – HD67001 Converter Author: Zou Wuyi Mobile 185-020-77899 Email [email protected] Configuration Description: The “CANopen/Modbus Master– Converter“ allows communication between the CANopen network and the Modbus network. You need to install Compositor SW67001 software on your computer to perform the following operations: Define the CANopen frames read from Modbus; Define the CANopen … Read more
In the CANopen device model, the primary communication objects are PDO and SDO. So, can they be used simultaneously in a CANopen device? Of course, SDO (Service Data Object) and PDO (Process Data Object) can be used simultaneously. In fact, they serve different purposes in the CANopen network and are often used together to optimize … Read more
CANopen to Modbus Slave – HD67002 Gateway Converter Author: Zou Wuyi Mobile185-020-77899 [email protected] 1、Product Features:The configurable CANopen Modbus RTU Slave Converter has the following features: Realizes bidirectional information exchange between CANopen network and ModBUS network; Provides electrical isolation between the two buses; Allows writing to SDO (Service Data Object) via ModBUS words; Allows reading of … Read more