To get straight to the point, whether other servo drives can receive commands from the PLC (master) depends on the network topology and configuration that allow for continued communication. Here is a detailed analysis of this issue: 1. How EtherCAT Networks Work EtherCAT is a real-time industrial fieldbus protocol based on Ethernet, utilizing a “Processing … Read more
Introduction SPI, short for Serial Peripheral Interface, is a high-speed interface technology that supports full-duplex synchronous communication. The communication rate can reach several megabits to tens of megabits. 1. Four-Wire SPI The commonly used SPI typically consists of four lines: SDO/MOSI: Master device data output, slave device data input, such as when the master reads … Read more
Project Background With the continuous in-depth development of digital government services, government service centers are keeping pace with the times, actively implementing a comprehensive renovation and upgrade of information technology equipment in their server rooms. The core purpose of this renovation is to optimize the existing communication system, addressing key issues such as complex wiring, … Read more
The EtherCAT State Machine (ESM) coordinates the master and slave applications during startup and operation. The state changes of slave devices are usually initiated by requests from the master; however, in some cases, the local applications of the slave can also independently change states. To transition from the Initialization state to the Operational state, EtherCAT … Read more
The upper interface in the image displays the address, name, and state machine status of the slave device.The “CRC” column shows the cyclic redundancy check counter value of a single EtherCAT slave device at a certain moment. The cyclic redundancy check counters for ports A, B (if used), C (if used), and D (if used) … Read more
Click the above đ “Automotive Electronics Tool Wisdom Library” to follow the subscription account and set it asStarredâ to get more real-time content updates. In today’s smart vehicles, the number of in-vehicle ECUs (Electronic Control Units) is increasing, ranging from dozens to hundreds. Faced with such a complex network communication scenario, the switch has become … Read more
1ăContent Introduction This article mainly introduces the Modbus RTU communication between two Schneider M200 PLCs. 2ăCommunication Preparation Work 1. Connection Schematic 2. Communication Parameters 3ăMaster Station Reads Slave Station Program Writing 1. Program Writing The master station reads 5 words from the slave station using the function block â%READ_VAR0â. 2. Instruction Explanation Link:1-SL1: Indicates that … Read more
The RS-485 bus is widely used in industrial environments, which may experience high levels of electrostatic or surge interference. Engineers typically use gas discharge tubes and TVS diodes to build protection circuits. However, the capacitance of these circuits can be high, and improper application may affect communication. This article will introduce a low-capacitance peripheral circuit. … Read more
BACnet Slave to PROFIBUS Slave– ADFWEB Gateway Converter– Guangzhou Xinyu IoT Author: www.adfweb.com.cn Zou Wuyi Mobile185-020-77899 [email protected] 1 Features: HD67676 is a BACnet Slave/ PROFIBUS Slave converter. It has the following features: ⢠Supports up to2000 BACnet objects (read/write); ⢠Provides triple isolation betweenBACnet and power,BACnet and PROFIBUS, power and PROFIBUS; ⢠Supports bidirectional information … Read more
Follow+Star Public Account, don’t miss out on exciting content Source | Embedded Miscellaneous In the past decade, the Internet of Things (IoT) has been developing rapidly, and in many scenarios, networking is essential. Both MQTT and HTTP are used in IoT applications, but their application scenarios differ. In IoT applications, MQTT (Message Queuing Telemetry Transport) … Read more