Over the weekend, I was assisting a client in using the IRC5 compact cabinet to communicate with the Xinjie XDH series PLC as a slave (Adapter) while the PLC acts as the master (Scanner) via EtherNet/IP. During the technical support process, I recorded some steps and issues to share, to avoid pitfalls.The client’s machine is … Read more
M-Bus Multi-Master to Modbus RS232 (RS485) – ADFWEB Converter – Guangzhou Xinyu IoT Author: Zou Wuyi Mobile 185-020-77899Email: [email protected] 1 Product Features: HD67063-232-B2-xxx / HD67063-485-B2-xxx is a gateway device that supports Modbus slave and M-Bus master/slave communication. It has the following features: Electrical isolation between RS232C/RS485 and M-Bus ; Baud rate and parity can be … Read more
Overview of RS232 The RS-232 interface complies with the serial data communication interface standard established by the Electronic Industries Alliance (EIA). The original designation is EIA-RS-232 (abbreviated as 232, RS232). It is widely used for external connections of computer serial interfaces, including connection cables, as well as mechanical, electrical, signal, and transmission processes. The RS-232-C … Read more
MQTT Protocol 1.1 Introduction MQTT (Message Queuing Telemetry Transport) is a lightweight messaging protocol designed for low-bandwidth, high-latency networks. It provides real-time, reliable messaging services for remote devices with minimal code and bandwidth usage. MQTT operates over TCP and is classified as an application layer protocol. 1.2 Message Format A fixed header, a variable header, … Read more
Hello everyone, I am Yang. Today I want to discuss a very practical topic in the field of industrial automation – the integration of PLC and MES systems. Many factories face the challenge of relying on manual recording for equipment data collection and using Excel spreadsheets for production planning, leading to low workshop management efficiency. … Read more
J1939 to Modbus Master – ADFweb Gateway Converter– Guangzhou Xinyu IoT Author: Zou Wuyi [email protected] 1ćProduct Features: Configurable J1939 to Modbus master gateway supports the following functions: Baud rate can be changed via software; Electrical isolation between the two buses; Can read data requested by the gateway from J1939 frames to Modbus devices; Power supply … Read more
1. Introduction Modbus communication is a widely used communication protocol, commonly applied in variable frequency drives, smart instruments, and other intelligent devices. This article uses the S7-200SMART series PLC as the Modbus master and the Siemens V20 variable frequency drive and Omron E5EZ intelligent temperature controller as slaves to share how to use a custom … Read more
Case IntroductionPCBA for Agricultural DronesFunction Overview1. Flight Control and Navigation Flight Controller: As the “brain” of the drone, the flight controller integrates a microcontroller unit (MCU) that processes signals from sensors and executes flight tasks such as takeoff, hovering, route planning, and landing. Inertial Measurement Unit (IMU): Includes accelerometers, gyroscopes, and magnetometers to monitor the … Read more
Author: Free and Open Lake AI What is MQTT Used For? MQTT is a lightweight messaging protocol commonly used for Internet of Things (IoT) devices, designed to be energy-efficient and consume minimal bandwidth. The MQTT protocol operates over TCP/IP and is based on a lossless communication bi-directional publish-subscribe model, ensuring that MQTT messages are delivered … Read more
In previous articles, we have completed discussions related to module testing. Starting from this section, we will introduce tests related to PACK, beginning with some knowledge about communication to lay the groundwork for subsequent chapters. In communication, we often encounter the term bus, such as address bus, data bus, control bus, etc. The English term … Read more