Click the blue text for more exciting information Having been in this industry for over a decade, I must say, I get really frustrated when I see new electrical engineers designing PLC systems. Especially when it comes to data types, many have no concept at all, just copying a few lines of code from the … Read more
Fundamentals of PLC Programming: A Beginner’s Guide to Data Types Author: Electric Guy | 15+ years of frontline engineering experience I’ve been asked a lot of questions about PLC data types by beginners, it’s really frustrating! Honestly, isn’t this just the most basic thing? Today’s electrical novices are really falling behind, they can’t even distinguish … Read more
The core functionality of NumPy (Numerical Python) is specifically designed to handle multidimensional arrays, but its capabilities extend far beyond that. As the foundational library for scientific computing in Python, it centers around N-dimensional arrays (ndarray), deriving a full range of functionalities covering mathematical operations, linear algebra, data preprocessing, and more. 1. ndarray: NumPy’s Exclusive … Read more
Course Introduction Welcome to the world of algorithm competitions! This course will guide you through the basics of C++ syntax, laying a solid foundation for subsequent algorithm problem-solving. Basic Structure of a C++ Program Example of a standard program framework: #include <iostream> // Input-output stream header file using namespace std; // Namespace declaration int main() … Read more
Comprehensive Guide to C Language Unions: Differences Between Unions and Structures In the C language, a union and a structure are two important data types used to store different types of data. This article will detail their basic concepts, usage, and explain the differences between them. 1. Structure (Struct) 1. What is a Structure? A … Read more
Hello everyone, I am Xiaokang. Today, let’s talk about a lighter topic: implicit type conversion in C. Have you ever experienced this: the code looks fine, the compilation goes smoothly, but it runs into inexplicable errors? After some debugging, you find out it was a “small data type” issue? Congratulations, you are now part of … Read more
Click 👆 above to follow Engineer Yan Ji and ★star★. Protocol Definition 1. Modbus is a request-response protocol implemented using a master-slave relationship. 2. The Modbus protocol introduces different application data units to change the packet format used in serial communication or to allow the use of TCP/IP and User Datagram Protocol (UDP) networks. Its … Read more
Hello everyone! I am your old friend from Python, and today I want to introduce you to a super useful tool—Redis-py, which can make your Python programs fly! In simple terms, Redis is like a super fast database, and Redis-py is the key that allows your Python programs to easily use Redis, just like grabbing … Read more
Lifetime Technical Support:186 3636 9649 Author Introduction: Fan Shengmin (186 3636 9649), Member of the Science Writers Association of Yuncheng City, Member of the Science Writers Association of Shanxi Province. Author of maker education. Published “Playing with Electronics” in 2016、“Super Fun Electronics Production” in 2017、”Electrical Experiments in Life” in 2018,“Arduino Programming and Hardware Implementation” in … Read more
When discussing data types in Python, we must start with the standard data types. The standard data types in Python are as follows: Numeric Types: Numeric data types are used to store numerical values. They are immutable data types, meaning that changing a numeric data type will allocate a new object. In Python 2.X, there … Read more