Summary of ModBus RTU Issues

Summary of ModBus RTU Issues

Click↑↑Technical Training, follow and pinto subscribe for free long-term 200,000+Industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 1. What is the difference between ModBus RTU communication protocol and ModBus communication protocol? The ModBus protocol is an application layer message transmission protocol (OSI model layer 7), which defines a Protocol … Read more

Detailed Guide on Using ModbusPoll and ModbusSlave Software

Detailed Guide on Using ModbusPoll and ModbusSlave Software

Three Essential Tools for Modbus Learning The three essential tools for learning Modbus are ModbusPoll, ModbusSlave, and VSPD, which can facilitate Modbus debugging. ModbusPoll software is mainly used to simulate a Modbus master station or Modbus client. ModbusSlave software is primarily used to simulate a Modbus slave station or Modbus server. VSPD, which stands for … Read more

Understanding Modbus: A Comprehensive Guide

Understanding Modbus: A Comprehensive Guide

Some may still be unaware of what Modbus is; in fact, Modbus is widely used in real life, and it is present in almost all industrial electronic device systems. Below, we will describe some common questions about Modbus for beginners. What is Modbus? Modbus is a communication protocol developed by Modicon (now Schneider Electric) in … Read more

Microcontroller + WiFi Module and Siemens S7-200 Smart for Modbus TCP Communication

Microcontroller + WiFi Module and Siemens S7-200 Smart for Modbus TCP Communication

Forum Weekly 21 Jan 2022 This week’s highlights: 1. Microcontroller + WiFi Module and Siemens S7-200 Smart for Modbus TCP Ethernet Communication 2. Self-drawn – 24V regulated positive and negative 12V switching power supply schematic! 3. Self-written Tetris, Botu V16 4. How to make the servo motor rotate freely while powered on? 5. S7 200 … Read more

Industrial IoT Data Bridging Tutorial: Modbus to MQTT

Industrial IoT Data Bridging Tutorial: Modbus to MQTT

Introduction to Modbus Modbus is a serial communication protocol used to connect industrial automation devices, originally developed by Modicon in 1979. It has become one of the universal communication standards widely used in industrial automation scenarios. Modbus adopts a master-slave model and supports various transmission methods, including serial (RS-232/485) and Ethernet versions (TCP/IP). It is … Read more

Siemens PLC Programming and IIoT Monitoring System

Siemens PLC Programming and IIoT Monitoring System

Today, let’s talk about how to use Siemens PLC to create an Industrial Internet of Things (IIoT) monitoring system. If you have some basic knowledge of PLC programming, this article can help you understand how to integrate PLC with the Internet of Things, allowing machines and equipment to be monitored and managed anytime, anywhere. 1. … Read more

Siemens PLC Applications in Industrial IoT: Connecting to Smart Manufacturing

Siemens PLC Applications in Industrial IoT: Connecting to Smart Manufacturing

▼ Click the card below to follow ▲ Click the card above to follow me 【Technical Innovation】 Siemens PLC Applications in Industrial IoT, Connecting to the Future of Smart Manufacturing Hello everyone, I am Yu Ge. Today, let’s talk about how Siemens PLC can shine in the Industrial IoT, helping factories achieve smart manufacturing. This … Read more

Methods to Improve RS-485 Bus Reliability and Common Fault Handling

Methods to Improve RS-485 Bus Reliability and Common Fault Handling

Click↑↑Technical Training, Follow and Pinto Subscribe for Free Long-term 190,000+Industrial Control Professionals Follow this WeChat Platform: Technical Sharing, Learning Exchange, Industrial Control Videos Among various solutions for medium and long-distance communication between MCUs, RS-485 is widely used in fields such as factory automation, industrial control, community monitoring, and hydraulic automatic reporting due to its simple … Read more

RS-485 and MODBUS: Characteristics and Communication

RS-485 and MODBUS: Characteristics and Communication

RS-485 belongs to wired transmission, so it requires a hardware transmission medium, which can actually be just two wires. The signal transmitted over these two wires is the same; the sender splits this signal into two, but the receiver restores it to the original signal. The advantage of this method can be compared with RS-232; … Read more

Connecting OT and IT with Industrial Raspberry Pi and MQTT

Connecting OT and IT with Industrial Raspberry Pi and MQTT

1. Application Devices OT devices: Stepper motor, MODBUS TCP remote I/O module, PLC devices; Edge device: Hongji Industrial Raspberry Pi; IT devices: PC, Android phone; IT software: Hongji HiveMQ MQTT communication platform. 2. Principle The Hongji Industrial Raspberry Pi collects data from the stepper motor, MODBUS TCP IO module, and PLC device using the MODBUS … Read more