1: How to avoid “communication failure” messages when using CPU 315F and ET 200S? When using CPU S7 315F, ET 200S, and fault-tolerant DI/DO modules, you will call the fault-tolerant program OB35. Moreover, you have accepted all default monitoring time values and are willing to receive “communication failure” messages. OB 35 is set to 100 … Read more
Below is a complete example demonstrating how to use ZeroMQ for communication between a Qt C++ application and a Python script. This example uses the REQ-REP pattern, where the Qt C++ client sends requests to the Python server and receives responses. Preparation First, install the necessary dependencies: # Install ZeroMQ C++ library sudo apt-get install … Read more
‖ System Learning Life is like a marathon; sometimes you need to pause and enjoy the scenery to go further. It’s been a while since we released a hands-on tutorial. This time, we bring you a tutorial on free communication between Xinjie PLC and the IDS850ABS low-voltage DC servo driver via CAN. Introduction to CAN … Read more
-Begin-Hello everyone! I am Engineer Fu. Whether learning about host computers or PLCs, one topic seems unavoidable—communication. PLC communication focuses more on application; it only requires calling the corresponding function blocks and filling in the correct parameters, without needing to understand the underlying implementation principles. Host computer communication emphasizes the underlying principles, requiring knowledge of … Read more
1. Introduction Modbus, as a widely used general communication protocol, is extensively applied in frequency converters, smart instruments, and various intelligent devices. Previous articles have shared application cases based on the development of custom Modbus communication block instructions, specifically including the communication program implementation between S7-200SMART and Siemens V20 frequency converter, as well as Omron … Read more
Name: UART Asynchronous Serial Communication Circuit Design Verilog Code for Quartus FPGA_C4_V2.1 Experimental Board Software: Quartus Language: Verilog Code Function: Function Description Enhance the transmission rate of UART communication, supporting higher baud rates (such as 115200, 230400, or higher). Implementation Method 1. Optimize Baud Rate Division Use a higher system clock frequency (e.g., 100MHz) and … Read more
The S7-200 SMART is a compact PLC launched by Siemens for small to medium-sized automation scenarios. Its PROFINET (abbreviated as PN) communication function is one of the core methods for achieving high-speed and stable data exchange between devices. As a mainstream protocol in industrial Ethernet, PROFINET provides the S7-200 SMART with the dual advantages of … Read more
Modbus TCP to HART – ADFWEB Gateway Converter– Guangzhou Xinyu IoT Author:www.adfweb.com.cn Zou Wuyi Mobile185-020-77899 Email: [email protected] 1、Features: HD67909-A1 is a Modbus TCP slave /HART master converter. It has the following features: Triple isolation between Ethernet and power, Ethernet and HART, and HART and power; Bidirectional information transmission between the Ethernet bus and HART bus; … Read more
This article is from the public account: Semi Dance In the semiconductor industry, which is characterized by high technology, capital intensity, and talent density, the relationship between equipment manufacturers and chip manufacturers is both delicate and complex. One party provides critical equipment worth millions or even tens of millions of dollars, while the other relies … Read more
1. Overview of PLC Socket TCP Client Communication: In socket TCP client communication, the client first calls a system function to create a TCP socket, then initiates a connection request to the server at a specified IP address and port. A reliable connection is established through a three-way handshake. The communication protocol can be customized … Read more