unsetunsetIntroductionunsetunset Last week, I encountered a real project failure where Old Zhang’s robotic arm suddenly started dancing, and the PLC data could not be transmitted to the cloud. Today, let’s discuss how to use a $20 ESP32 module to handle both PLC’s RS485 communication and cloud data integration. No need for high-end gateways; follow me … Read more
FX5U: Beginner’s Guide to Mitsubishi PLC and Practical Modbus Communication Imagine you have just taken over an automation renovation project, with five frequency converters standing like silent soldiers waiting for orders. An operator points to the flashing screen in the control room and asks, “Can the data from these devices be displayed in real-time?” Don’t … Read more
Modbus is a serial communication protocol that was published by Modicon (now Schneider Electric) in 1979 for communication with programmable logic controllers (PLCs). Modbus has become the de facto industry standard for communication protocols in the industrial sector and is now a common method for connecting industrial electronic devices. The main reasons for the widespread … Read more
Project Name: Modbus Remote I/O Board – Based on STM32F103C8T6 – V1.0 Project Author: NeoMR Introduction To consolidate newly learned embedded knowledge, a handsome guy crafted a industrial control Modbus remote I/O board! This project is fully open source and relatively simple! It is meant for sharing and learning together! This project can be used … Read more
A true master always retains the heart of an apprentice! 1. Project Overview Great Resource! Client Implementation of IoT Device Communication Protocols 2. Functional Implementation ModBusTcp Read/Write Operations: ModBusTcp is a communication protocol used for communication with Modbus devices over Ethernet. The ModBusTcp component allows for read and write operations on Modbus devices. ModBusRtu Read/Write … Read more
In industrial automation, communication between devices is a crucial aspect. Whether it is sensors, actuators, PLCs, or industrial computers, they all need to “talk” to each other in some way. Fieldbus technology was born to solve this problem. Today, I will introduce you to three common fieldbus technologies: MODBUS, CANopen, and PROFIBUS, discussing their basic … Read more
Introduction: The “Telephone System” of Industrial Energy Meters Imagine hundreds of energy meters in a factory like silent soldiers, and you have no way of knowing their real-time data—this information black hole is something every engineer has experienced. Today, we will reveal in simple terms how to build an “industrial telephone system” using the S7-200 … Read more
Recommended by Deepseek! A free OT+IT industrial visualization platform.Struggling with Modbus master-slave relationships?A single article on implementing Modbus communication in C# is enough!Modbus protocol gateway explained by industrial control experts! It’s amazing. What is Modbus and what is it used for? When it comes to industrial automation, Modbus is definitely a topic that cannot be … Read more
Industrial IoT Gateway Application: Practical Implementation of PLC Data Uploading to Alibaba Cloud Today, we will discuss how to use a smart gateway to transmit PLC data from the factory to the Alibaba Cloud platform. This solution is particularly suitable for small and medium-sized enterprises that require remote monitoring of equipment status, saving a significant … Read more
CANopen / Modbus Master – HD67001 Converter Author: Zou Wuyi Mobile 185-020-77899 Email [email protected] Configuration Description: The “CANopen/Modbus Master– Converter“ allows communication between the CANopen network and the Modbus network. You need to install Compositor SW67001 software on your computer to perform the following operations: Define the CANopen frames read from Modbus; Define the CANopen … Read more