1. Overview of the Porting Process Hardware Platform Setup Selection of the main control chip: It is recommended to use the STM32F4 series (such as STM32F407) or Microchip SAMD5x series, which must support SPI/SQI or HBI interfaces to communicate with LAN9253. Hardware connection: LAN9253 connects to the main control via the SPI interface, requiring configuration … Read more
【Introduction】A complete video on the differences and comparisons between PROFIBUS and PROFINET. Recommended Reading (1) A Large System Failure Handling Experience (2) S7-400 DP Communication Failure Handling Example (3) S7-300 PN Communication Failure Handling Example The following video is sourced from PROFINET What Everyone is Watching 【Video】How German Engineers Create PLC Cabinets? 【Video】How are German … Read more
1. Overview PROFIBUS-DP, where DP stands for Decentralized Periphery, is a type of computer electronic component. It features high speed and low cost, used for communication between device-level control systems and decentralized I/O. It, along with PROFIBUS-PA (Process Automation) and PROFIBUS-FMS (Fieldbus Message Specification), constitutes the PROFIBUS standard. 2. Basic Information Specifications The PROFIBUS-DP protocol … Read more
Consider a DC power supply with an output socket interface that has three pins: positive, negative, and ground. Accordingly, the load’s plug should also have three pins corresponding to the power supply side to correctly obtain power supply. Note that there are three essential conditions that must be met: The first is that the shape, … Read more
– RS485: It is a physical layer electrical standard that specifies the electrical characteristics of data transmission, signal levels, transmission distances, and connection methods. It uses differential signaling for transmission, has strong anti-interference capabilities, and can achieve half-duplex communication between multiple devices. It is commonly used for long-distance data transmission in industrial environments. – Modbus: … Read more
This article discusses the conversion from Modbus TCP to Profinet in a master-slave configuration. The process involves understanding the communication protocols and ensuring compatibility between devices. To implement this conversion, you will need to configure the Modbus TCP settings on the master device and set up the Profinet parameters on the slave device. This includes … Read more
1 ✦ Sender: ajun In 2021, the factory I rented in Shahe was demolished. Through a referral, I moved my woodworking workshop to Yanjiao. The landlord was the former village head. He occupied a piece of public land and built a house on it. After the machines were sent over, the landlord said there were … Read more
Hello everyone! Today, I want to talk to you about a fantastic tool—nanolibc! This little gem is compact and powerful, just like a martial arts master in a novel, light as a feather yet incredibly effective! What is nanolibc? In simple terms, nanolibc is a streamlined version of the C standard library (libc). It only … Read more
Source: 2cm, Zhihu, China Electric Network, etc. Reprinted from: Global Internet of Things Observation Published by: Internet of Things Think Tank Please indicate the source and origin when reprinting – —— 【Introduction】 —— By 2020, each household will have up to 50 devices connected to the internet, and the standards for connectivity will not be … Read more