485 Communication

New Book Recommendation: Internet of Things Communication and Intelligent Sensing – Theory and Practice

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New Book Recommendation: Internet of Things Communication and Intelligent Sensing - Theory and Practice

“Internet of Things Communication and Sensing: Theory and Practice” ISBN: 9787302683834 Authors: Wang Jiliang, Tong Shuai Price: 69 Yuan Comprehensively introduces the fundamental principles and implementations of Internet of Things communication and sensing, closely aligned with the forefront of the field; Combining theory and practice, covering basic knowledge, specific cases, and implementation code, providing a … Read more

Implementing Modbus TCP Master Communication in C# (Part II)

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Implementing Modbus TCP Master Communication in C# (Part II)

Abstract ❝ This article builds upon the previous one by adding the functionality to read and write int and float data, as well as byte order reading and writing functions (ABCD, BADC, CDAB, DCBA)【Project address at the end of the article】. Introduction Today, we will discuss how to add new features to the previous article … Read more

Fundamentals of Siemens PLC Communication: Easily Master Modbus and Profinet Configuration

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Fundamentals of Siemens PLC Communication: Easily Master Modbus and Profinet Configuration

Fundamentals of Siemens PLC Communication: Easily Master Modbus and Profinet Configuration Let’s Talk About PLC Communication Hello everyone, I am Lao Lu, an engineer with over ten years of experience in the automation industry. To be honest, PLC communication is an unavoidable topic. Whether you are a beginner or a seasoned engineer, you will encounter … Read more

PLC Communication Essentials: From RS-485 to Ethernet, How to Seamlessly Connect Data

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PLC Communication Essentials: From RS-485 to Ethernet, How to Seamlessly Connect Data

Hello everyone, I am Maple Leaf, and I have been in the PLC industry for over twenty years. Today, let’s talk about something practical—PLC communication essentials. To be honest, communication issues in the field are the most common type of faults I encounter, without exception! Many novice engineers have stumbled in this area, including myself … Read more

Analysis of the Five Major Challenges in Connecting Mitsubishi PLC with IIoT Platforms via MQTT Protocol

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Analysis of the Five Major Challenges in Connecting Mitsubishi PLC with IIoT Platforms via MQTT Protocol

In the automotive welding workshop, the operation screen suddenly displayed a “D840.3” communication alarm, indicating that the data interruption of equipment utilization rate between the PLC and the MES system has lasted for 23 minutes. At this time, although the production line is still running, the lack of quality traceability information will result in the … Read more

Disadvantages of EtherCAT Communication

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Disadvantages of EtherCAT Communication

1. High Hardware Investment Threshold The implementation of this technology requires dedicated hardware support, which is a significant departure from conventional Ethernet protocols. Unlike Ethernet/IP or Modbus TCP solutions that utilize general network devices, EtherCAT systems require slave devices to integrate dedicated communication chips (such as Beckhoff’s ET series control chips) or be equipped with … Read more

Modbus Master to Modbus Slave Converter with Different Baud Rates – Guangzhou Xinyu IoT

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Modbus Master to Modbus Slave Converter with Different Baud Rates - Guangzhou Xinyu IoT

Modbus Master to Modbus Slave with Different Baud Rates– Converter– Guangzhou Xinyu IoT Author: Zou Wuyi Mobile185-020-77899 Email: [email protected] 1 Features: The configurable “Modbus Slave/Modbus Slave – Converter” has the following features: • Electrical isolation between Modbus ports. • Can be mounted on a 35mm DIN rail; • Power supply: 8…24V AC or 12…35V DC; … Read more

DeviceNet Slave to Modbus Slave – ADFweb Gateway Converter – Guangzhou Xinyu IoT

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DeviceNet Slave to Modbus Slave - ADFweb Gateway Converter - Guangzhou Xinyu IoT

DeviceNet Slave to Modbus Slave– ADFweb Gateway Converter– Guangzhou Xinyu IoT Author: Zou Wuyi Mobile185-020-77899 [email protected] 1 Product Features: Modbus Slave/ DeviceNet Slave Gateway has the following features: On the DeviceNet side, the maximum data read can reach 455 bytes, and the maximum data write can reach 455 bytes; Realizes bidirectional information transmission between the … Read more

The Crack of Trust: A Breakup Story Triggered by Automatic Wi-Fi Connection

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The Crack of Trust: A Breakup Story Triggered by Automatic Wi-Fi Connection

Recently, I came across a news story about a couple in Chongqing who broke up due to a misunderstanding caused by the girl’s phone automatically connecting to the hotel Wi-Fi. The incident unfolded as follows: when the girl and her boyfriend checked into the hotel, her phone automatically connected to the hotel Wi-Fi, which had … Read more

Modbus Debugging is Like Dating! These 3 Command Tips Work Every Time!

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Modbus Debugging is Like Dating! These 3 Command Tips Work Every Time!

Modbus Debugging is Like Dating! These 3 Command Tips Work Every Time! Have you ever been tormented by Modbus communication debugging to the point of exhaustion? You configure everything according to the manual, yet the communication fails, and you watch time slip away without any progress. To be honest, when I first entered the industry … Read more