■ Real Incident at a German Automotive Factory in 2018: At 07:23, all 32 servo nodes on the assembly line went offline. The root cause was found to be a duplicate product code field in the EDS file [0x1018], resulting in an economic loss of 12 million per day (Data source: VDMA Fault Report No.CAN-20181207) … Read more
Click the blue text above to follow us In the field of industrial control, CANopen is widely used as a standard protocol. Today, we will share the application case of the integrated stepper motor and Delta PLC (AS228T) under the CANopen communication protocol: 1. Hardware Composition Software Composition: 2. Establishing a New Project 1. Open … Read more
In the article “CanOpen Message – Understanding PDO Messages“, a brief introduction to PDO messages is provided. For SDO messages, there are read/write identifiers and object indices, allowing the receiving end to recognize the messages. Meanwhile, PDO messages contain only valid data, so for the receiving end to identify them, both the sending and receiving … Read more
We have introduced various industrial communication protocols such as EtherCAT, Modbus, Profibus, Profinet, and EtherNet/IP: In-depth Analysis of EtherCAT Bus Technology (Final Part) Comprehensive Analysis of RS232, RS422, and RS485 Serial Communication Technologies (Final Part) Complete Analysis of Modbus Protocol (Final Part) Complete Analysis of Profibus Technology (Final Part) Complete Analysis of Profinet Technology (Final … Read more
In the last issue, we introduced the basics of CANopen: the OSI 7-layer model, different data communication methods, and the object dictionary: Do you know these basics about the CANopen communication protocol? This time, we will focus on the three different communication models and definitions between nodes in the CANopen protocol. Note: A CANopen network … Read more
Introduction to CANopen Protocol: Multi-Device Collaborative Communication Design In the field of industrial automation, multi-device collaborative communication is a common requirement. For example, multiple PLCs, sensors, and actuators on a production line need to coordinate with each other. To address this, the CANopen protocol was developed. It is a high-level protocol based on the CAN … Read more
AGV cart basic control Example of configuring the CM CANopen module from HMS Industrial Networks with Siemens‘ S7-1200 PLC in the TIA Portal. In this example, a 1214C type CPU is used, but this example can also be applied to all other PLC types. To run this example, the HSP file must be installed, which … Read more
Click the blue text Follow us CANopen and CAN communication are two commonly used technologies in industrial automation and embedded systems, but they belong to different levels of concepts. Below is a detailed analysis of the core differences and their relationship: 1. Basic Definitions and Protocol Levels Key Differences: CAN is a low-level communication protocol … Read more
A single crystal furnace is a device that melts polycrystalline materials such as polysilicon using a graphite heater in an inert gas environment, and grows dislocation-free single crystals using the Czochralski method. The crystal pulling process is a crucial step in the preceding process, affecting the purity and quality of the silicon wafers. Due to … Read more
1. Background Significance GRBL has conducted research on bus-based embedded CNC systems, introducing trajectory planning algorithms such as corner arc transition and dynamic speed anticipation to optimize processing paths. The embedded CNC system based on the CANopen bus can accurately track processing trajectories, and compared to traditional pulse control methods, the number of connections is … Read more