With the advancement of Programmable Logic Controller (PLC) technology, there has been a leap from wiring logic to storage logic since its inception; its functions have progressed from weak to strong, achieving improvements from logic control to digital control; its application fields have expanded from small to large, crossing over from simple control of individual … Read more
EtherCAT Measurement Terminal Module in Wind Farm Monitoring The UK has launched the “2030 National Wind Power” plan, aiming to power all households in the UK with offshore wind energy by 2030. According to data from the UK grid, one day in January saw wind farms generate 19,835 megawatts, enough to meet over half of … Read more
Introduction PLC comes in various sizes, hence its control range can also vary. Smaller PLCs might only control a single device, or even a component at a site; larger ones can control multiple devices, an entire production line, or even an entire factory. It can be said that PLCs are indispensable in both large and … Read more
1. Used for Switch Control PLC has a strong capability to control switch signals. The number of controlled input and output points can range from a few dozen to several hundred, or even thousands, and it can control tens of thousands of points. As it can connect to virtually unlimited points, the logic problems it … Read more
This is a typical block diagram of a PLC control system: 1. Used for Switch Control The PLC has a strong capability for controlling switch quantities. The number of controlled input and output points can range from a few to hundreds, thousands, or even tens of thousands. Because it can be networked, the number of … Read more
1. Used for Discrete Control The ability of PLC to control discrete signals is very strong. The number of input and output points can range from a few dozen to several hundred, even thousands or tens of thousands. Because it can be networked, the number of points is almost unlimited, and it can control any … Read more
Transformation and Application of ZigBee-Based Sensor Experiment Platform Authors: Ye Yangting, Wang Li (Jianghan University, School of Physics and Information Engineering, Wuhan, Hubei 430056) Abstract To address the issues of single functionality and poor mobility of sensor experimental equipment, this paper analyzes the structural characteristics of the sensor and detection technology experimental platform at Jianghan … Read more
DAC (Digital-to-Analog Converter) and ADC (Analog-to-Digital Converter) are essential components for converting between digital and analog signals, widely used in electronic systems for various applications such as digital signal processing, data acquisition, and control. So, do you know how to implement DAC and ADC? Methods for Implementing DAC 1. Resistor Network A resistor network is … Read more
1 8-Bit/16-Bit Bus Timing Analysis 1.1 8-Bit Microcontroller Bus Timing There are many 8-bit microcontrollers with external buses, such as the 51 series and AVR series. This article takes the W77E58 as an example. The W77E58 is an enhanced 51 microcontroller introduced by Winbond, with a maximum operating clock of 40 MHz. At the same … Read more
When selecting a DAQ device, have you considered these influencing factors? —— The choice of architecture and robustness will determine the applicable scenarios of the system, such as a controlled laboratory or unpredictable field conditions. —— The selected bus can determine not only the throughput and latency of the DAQ system but also the portability … Read more