This article is a guide. The advantages of the RS-485 bus are well-known, and to ensure stable communication, isolated RS-485 modules are used for signal isolation. However, during actual RS-485 networking, one may encounter communication failures, errors, or even damaged RS-485 transceivers. What causes these issues? This article will deeply analyze the problems associated with … Read more
EtherCAT FOE is a technology for upgrading the firmware of slave devices from the master station. By utilizing the data link layer of EtherCAT to handle data for file transmission, it ensures the integrity and accuracy of file transfers, providing strong support for the maintenance, upgrading, monitoring, and management of devices. In an EtherCAT industrial … Read more
End Source: Reprinted from Siemens, copyright belongs to the original author. Recommended Articles[Example] Mitsubishi Practical Position Control Program Case (with Source Code)Weekly Report Issue 46 | A summary of common problems faced by many students with Siemens, get it now!Highly Practical for Industrial Control People (Part 1)Highly Practical for Industrial Control People (Part 2)[Example] Comprehensive … Read more
Want to use ZigBee, want to set up a network, but don’t want to read complex networking protocols? This article is all you need! ZigBee originated from the “Homer flite” technology initiated by industry giants like INTEL and IBM in 1998. As China’s Internet of Things rapidly develops, ZigBee is gradually being accepted by more … Read more
New Year Gift for 2020, reply 【2】 in the background to receive the New Year gift With the continuous rise and development of wireless networks, the application fields of WiFi modules are quite extensive, extending greatly from indoor to outdoor spaces. Currently, the WiFi modules developed and produced by SKYLAB can be roughly divided into … Read more
What is the difference between gateways and routers? They are both network communication devices that serve the purpose of information transmission, and they seem quite similar, but there are indeed some differences. A gateway, also known as an inter-network connector or protocol converter, implements network interconnection above the network layer. It is the most complex … Read more
This article focuses on specific business aspects identified by QCI, such as base station-level QCI settings or cell-level QCI settings. This can lead to different QCI business switching parameter group IDs, DRX parameter group IDs, inter-system policy configuration group IDs, RLC PDCP parameter group IDs, logical channel priorities, etc. This article only introduces relevant commands; … Read more
JZGKCHINA Industrial Control Technology Sharing Platform 1 Introduction: RS-485 is a standard protocol for transmitting data that can be used to establish a reliable, high-speed, real-time, multi-node data communication network connection. RS-485 is also known as TIA-485. RS-485 defines the electrical characteristics of drivers and receivers used in serial communication systems. RS-485 is widely used … Read more
RS-485 Bus Overview When the communication distance is required to be from tens to thousands of meters, the RS-485 serial bus standard is widely used. RS-485 uses balanced transmission and differential reception, thus it has the ability to suppress common-mode interference. Additionally, the bus transceiver has high sensitivity and can detect voltages as low as … Read more
To pass the time, I will provide a detailed explanation of the previously written MQTT protocol code implementation; mainly focusing on the analysis and implementation of the MQTT network communication protocol, which specifically involves the splitting and processing of network data streams. Therefore, much of the content involves specific code functionalities. If you are interested … Read more