How to Control Mitsubishi Inverter with Mitsubishi PLC via RS-485

How to Control Mitsubishi Inverter with Mitsubishi PLC via RS-485

Click on the “Technical Training” above, select “Top Official Account“ Over 160,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos Methods for Mitsubishi PLC to Control Mitsubishi Inverter: Use the PLC’s digital output to control the inverter (i.e., connect the PLC’s digital output directly to the inverter’s digital input, … Read more

Understanding RS-485 and Modbus Protocols

Understanding RS-485 and Modbus Protocols

Are there still people confused about RS-485 and Modbus? This article aims to clarify the differences for beginners. Experts can skip ahead, but feel free to share this with your novice friends. RS-485 is a widely used serial data transmission standard in industrial applications. When implementing RS-485 communication, the Modbus protocol is often used, which … Read more

Understanding RS-485 Communication Standards

Understanding RS-485 Communication Standards

San Pao Er’s Hardware Development Learning Notes Sharing knowledge to enhance skills♥Exchanging experiences to strive for excellence Table of Contents 1. Main Features 2. Network Topology 3. Signal Levels and Unit Loads 4. Bus Termination and Stub Length 5. Fail-Safe Biasing ✍ RS-485 is a balanced transmission standard for serial communication approved by the Electronic … Read more

Why Convert Modbus to MQTT?

Why Convert Modbus to MQTT?

What is Modbus Modbus is a serial communication protocol originally developed by Modicon (now Schneider Electric) in 1979 for communication between programmable logic controllers (PLCs). The Modbus protocol is designed to be simple, easy to deploy and maintain, and due to its openness and lack of copyright requirements, it is widely used in the industrial … Read more

Comparison of MQTT and Modbus Protocols

Comparison of MQTT and Modbus Protocols

Follow + star the public account, don't miss wonderful content Source | Blog Garden The Internet of Things (IoT) is not just a new technology, but also the integration with old technologies, with communication being the key. Various communication methods are available, but different protocols play an important role in connecting a massive number of … Read more

Differences Between Modbus and Profibus

Differences Between Modbus and Profibus

Follow the “Automation Control System Communication” public account to learn about the principles of automation control systems and master knowledge of automation control systems. Click the blue “Automation Control System Communication” above to follow us. In DCS systems, the Modbus communication protocol is often heard of, while Siemens’ PLC often encounters the PROFIBUS communication protocol. … Read more

Introduction to Industrial Control Security: Device Drivers and Communication Analysis

Introduction to Industrial Control Security: Device Drivers and Communication Analysis

In this article, we will briefly understand the device drivers in VxWorks and complete the reverse analysis of the entire firmware main logic, while reproducing the last known vulnerability of the firmware. This article was actually written a long time ago, but was delayed for several days due to the Shandong Provincial Competition… I apologize … Read more

Detailed Explanation of RS-485 Bus Communication

Detailed Explanation of RS-485 Bus Communication

485 Communication Automatic Transceiving Circuit – The Most Detailed Explanation in History (Click to read) 5 Methods for Switching RS-485 Direction and Their Advantages and Disadvantages Analysis (ClickRead) [Guide] Hello everyone, I am Yijun. In the previous article, I summarized the industrial HART bus. Today, let’s talk about the RS-485 bus. RS-485 is also a … Read more

IBM Open Sources DIY Cardboard Robot: TJ Bot

IBM Open Sources DIY Cardboard Robot: TJ Bot

Selected from IBM Author: Maryam Ashoori Translated by: Machine Heart Contributors: Duxia De IBM has open-sourced a DIY cardboard robot: TJ Bot, inviting bot enthusiasts around the world to create their own personalized bots. Project address: https://github.com/ibmtjbot/tjbot TJ Bot continues the spirit of the maker community; it is a DIY toolkit that allows you to … Read more

Four-in-One Multifunction Control Board (Red) Manual

Four-in-One Multifunction Control Board (Red) Manual

1: Control Card Power Supply 24V Power Supply—->24V Power Ground—->GND 2: Three-Color Light Source Light Source 24V(Brown Wire)<——– Control Card 24V Light Source Red, Green, Blue<——– Control Card LT1,LT2,LT3 3: Glue Dispensing Trigger : Guhigh Card 24V ———–> Control CardCom Guhigh Card Ex015 ———> Control Card In1- (Reserved) Guhigh CardEx 02 ——-> Control Card In0- … Read more