Click the blue text for more exciting information Remote Monitoring Projects That Were Ruined by Industry 4.0 Honestly, I have been in this industry for almost 20 years and have seen too many so-called “factory informationization” projects end up as a pile of scrap metal. Last summer, a paper mill in Zhejiang spent a lot … Read more
JZGKCHINAIndustrial Control Technology Sharing Platform With the continuous development of industrial automation and information technology, PLC (Programmable Logic Controller) has become an indispensable key device in the field of industrial automation. As a powerful programming language, Python is increasingly favored by engineers for communication with PLCs. Python excels in scientific computing, data processing, and visualization, … Read more
Search on WeChatTechnical TrainingWhat is PLC? Learn about PLC through the following three parts:The concept of PLC, what PLC can do, and how to wire PLC. Concept of PLC / Part 1. PLC (Programmable Logic Controller) means: Programmable Logic Controller. Before the advent of PLC, traditional circuits were like this (as shown in the figure … Read more
Today, I will present an example of interference from a variable frequency drive (VFD) on a PLC’s analog signal and a solution using a signal isolation module to overcome such interference. 1. Example 1: Phenomenon Description In a Siemens PLC, the AO point outputs a 4-20mA current control signal to a Siemens VFD, but it … Read more
PLC Application Example: Biscuit Oven Temperature Control System Increases Product Consistency by 30%! Introduction “Why do biscuits from the same batch always have different colors?” This is a quality issue that troubles many biscuit manufacturers. Today, I want to share a real PLC application case — biscuit oven temperature control system upgrade, which has improved … Read more
Click the blue text to follow! PLC Safety Control Matters: Insights from an Experienced Electrician Last month, the automated production line in Xiao Wang’s workshop suddenly crashed, and even the safety light curtain was unresponsive, almost leading to a personal injury incident. Later, the factory manager called me to check, and I found that the … Read more
Click the blue text for more exciting information Event-Driven Programming for Fault Diagnosis in Smart Home PLC Systems Over the years, I have worked on numerous smart home projects and discovered a common issue: when a fault occurs, everyone is completely at a loss! Homeowners call every day, and for a minor issue, I have … Read more
Click the blue text for more exciting information Enhancing Flexibility in IoT Applications through Object-Oriented Programming in PLCs To be honest, I have never understood why so many people think that PLC programming must use ladder diagrams. What era are we in, still drawing relay logic? After nearly 20 years in this field, those who … Read more
Click the blue text for more exciting information Remote Monitoring Solutions for Industrial Automation Driven by PLC Function Block Diagrams Just two days ago, I received a call; Old Li’s paper mill had another problem. He insisted on using that cheap domestic RTU for protocol conversion last time, and now, well, it keeps dropping connections … Read more
Today, I will introduce some control programs for single button start-stop (also known as one-click start-stop programs). This involves using a momentary button: press once to turn on a light bulb, press again to turn it off, and repeat… Although this seems like a simple program, many people may struggle to implement it. This topic … Read more