Note: Please be aware that there is a resource download method at the end of the article. Download and save it as soon as possible to avoid deletion! MQTT Protocol 📡 Have you heard of MQTT? If you are interested in the Internet of Things (IoT), it is definitely a topic you cannot avoid! Today, … Read more
Note: Please be aware that there is a resource download method at the end of the article. Download and save it as soon as possible to avoid deletion! MQTT Server 📡 Have you ever wondered how IoT devices “talk” to each other? The answer is—MQTT! Today, we will discuss this amazing protocol and its servers. … Read more
Recently, while testing the integration of Mobotix cameras with HomeAssistant, I found that the Mobotix camera images could be successfully integrated into HomeAssistant via the Onvif protocol or RTSP. So how can the alarm signals from the Mobotix camera be integrated into HA? Since the Mobotix camera supports the MQTT protocol, and HA also supports … Read more
PART 01 Course Overview Course Name: TCP/IP Protocol Analysis Field of Study: Network Engineering Course Leader: Zhang Baojun Affiliated Institution: School of Media Engineering Course Type: Blended Online and Offline Course PART 02 Course Highlights The “TCP/IP Protocol Analysis” course is a core course for the Network Engineering major, featuring significant highlights. It focuses on … Read more
The TCP/IP protocol specifies that the minimum frame length for transmission is 64 bytes; any frame shorter than 64 bytes is considered invalid. So, how was this 64 bytes determined? This can be traced back to the CSMA/CD protocol. As is well known, early Ethernet operated on a shared bus, where multiple computers were connected … Read more
On July 22, 2016, the EtherCAT Technology Association reached another milestone in the development of the EtherCAT market in mainland China: surpassing 500 local members! Since the establishment of the EtherCAT Technology Association’s China representative office in Beijing in 2007, the number of ETG members in mainland China has grown from fewer than 10 to … Read more
As is well known, the aerospace industry has always used only the best: after all, orbital applications have very high reliability requirements, and the environmental demands during the launch, operation, and necessary landing of space components are also very stringent. Therefore, to date, the aerospace industry has primarily relied on technologies specifically developed for such … Read more
Guide to Troubleshooting Industrial Communication Protocols: EtherCAT vs Profinet 0 ▲ A High-Frequency and Underestimated Technical Blind Spot: Port Configuration Errors When Switching Communication Protocols As a veteran in industrial control for ten years, I have seen too many engineers stumble during the selection and debugging of communication protocols. Especially when switching from Profinet to … Read more
Connecting a CANOpen to PROFINET gateway with low voltage servo systems is a common application scenario in the field of industrial automation. Below is a detailed analysis of the connection process: 1. Preparation Work 1. Hardware Preparation: ● CANOpen to PROFINET gateway ● Low voltage servo system (with CANOpen interface) ● PLC (with PROFINET interface) … Read more
CANopen is a communication protocol based on CAN that has been widely used in the industrial field. CAN provides reliable low-level data transmission, while CANopen offers a standardized application layer protocol. In the CANopen protocol, each CANopen device has an object dictionary. The CANopen device model is shown in the figure below. The object dictionary … Read more