Set the upper and lower limits for the frequency set value, i.e., 0≤D40≥K10000. M8013 is a 1-second pulse cycle. Call the P0 subroutine to execute the CRC verification program for 6 data. Run the control common program. Use the rising edge to trigger the run control assignment program. Forward run control program. Reverse run control … Read more
MODBUS TCP Communication The new Mitsubishi FX5U series also supports MODBUS TCP communication. The common method is to act as a MODBUS TCP slave, where the Mitsubishi PLC listens on port 502 (default) for connection requests and read/write commands from the MODBUS TCP master. Of course, it can also act as a master to actively … Read more
On May 16, the People’s Bank of China released the financial industry standard ‘Guidelines for Financial Applications of IoT Technology’ (JR/T 0338—2025) (hereinafter referred to as ‘the Guidelines’), which took effect on the same day. It is reported that the drafting units of this document include several branches of the People’s Bank, state-owned banks, joint-stock … Read more
Click “Industrial Control Lao Xu” to follow me Introduction “Why does my PLC program crash while running?” “Clearly the logic is fine, but the output signals are jumping around?” PLC programming may seem simple, but beginners (and even experienced engineers) often fall into pitfalls due to some detail issues. This article summarizes the ten most … Read more
Detailed Explanation of MODBUS TCP Communication Commands Continuing from the previous article on the built-in MODBUS TCP command usage, the previous text only briefly mentioned the formats of three commands. Below is a detailed introduction. SP.SOCOPEN – Confirm Link In the list of built-in communication commands, you can see this command and its function description, … Read more
In the era of rapid development of smart devices, efficient communication between internal chips is crucial. The SPI (Serial Peripheral Interface) bus, with its unique advantages, has become the preferred solution for communication between many chips. Today, let us delve into the world of SPI and explore how it achieves high-speed and stable data exchange … Read more
Common Fault Codes for Gas Meters Ecological City Public Utility Information Release Platform “Beep beep beep… beep beep beep…” The gas meter in the kitchen suddenly starts beeping continuously. The screen is flashing with incomprehensible signal codes! What do these signal codes mean? Don’t worry. Today, we will teach you to quickly understand common fault … Read more
2025.05.25 Word Count: 3931 Estimated Reading Time: 5 minutes Abstract SRIO is commonly used for communication between FPGA and DSP, FPGA to FPGA, and inter-board communication. Based on previous experience implementing SRIO protocol communication between FPGA boards and between FPGA and DSP in projects, this article shares how to easily develop SRIO applications in FPGA. … Read more
Click the aboveblue text to follow us This article will analyze the core concepts, technical details, and practical applications of the Modbus protocol from the interviewer’s perspective, providing a comprehensive interview preparation guide for technical personnel. 1 What are the differences between Modbus RTU, Modbus ASCII, and Modbus TCP? Interviewers often assess candidates’ technical depth … Read more
PROFIBUS Master toCAN-ADFWEB Gateway Converter–Guangzhou Xinyu IoT Author:www.adfweb.com.cn Zou Wuyi Mobile185-020-77899 Email: [email protected] 1、Features: The configurable “PROFIBUS Master/CAN converter” has the following features: Triple isolation between CAN and PROFIBUS, CAN and power supply, PROFIBUS and power supply; Can be mounted on a 35mm DIN rail; Power supply: 8…24V AC or 12…35V DC; Operating temperature range: … Read more