【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
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
Main reference materials: Bilibili @ Jiangxie Technology STM32 Beginner Tutorial – 2023 Edition Detailed Explanation with Chinese Subtitles Development materials download link: https://pan.baidu.com/s/1h_UjuQKDX9IpP-U1Effbsw?pwd=dspb Microcontroller kit: STM32F103C8T6 development board microcontroller C6T6 core board experimental board minimum system board kit Introduction to I2C Peripherals • The STM32 integrates hardware I2C transceiver circuits, which can automatically execute clock … Read more
Click the blue text Follow us 1. Core Analysis of MQTT Protocol (1) Essential Characteristics of Lightweight Communication Protocols MQTT (Message Queuing Telemetry Transport) is a “lightweight” communication protocol based on the publish/subscribe model, built on top of the TCP/IP protocol. Its greatest advantage is that it can provide real-time and reliable messaging services for … Read more
Essential Books for Mastering PLCs (Download link for e-books) OPC UA The OPC Unified Architecture (OPC UA) is a new technology created by the OPC Foundation, which is more secure, reliable, and vendor-neutral, allowing for the transmission of raw data and pre-processed information from the manufacturing site to production planning or Enterprise Resource Planning (ERP) … Read more
This section discussesserial communication and the basic theories of communication. 1. Preliminary Knowledge of Serial Ports 1. Classification of Serial Ports A serial port is a widely usedcommunication interface, characterized bylow cost, ease of use, and simple communication lines, allowingtwo devices to communicate with each other. Note: Only two devices can be connected. The microcontroller’s … Read more
The EX series card-based I/O system is a modular industrial automation device, typically used for signal acquisition, control, and communication. Its modular design allows for flexible configuration and expansion. Below are the functions and system characteristics of each core component: 1. Adapter Module – Function: Acts as the communication hub of the system, responsible for … Read more
After introducing the content related to OPC UA communication, we have basically covered the main communication buses and protocols related to industrial automation. So, why have we focused on communication for nearly two years? Of course, for PLC/PAC engineers, or for electrical engineers or automation engineers, the core is not just communication; there are also … Read more