Click to follow and unlock more PLC technology knowledge! Introduction Many newcomers to the industrial control field often wonder: since PLCs come with built-in relay outputs, why do we need to add an extra row of external relays to control contactors? Doesn’t this increase costs and complicate the system? In fact, there is profound electrical … Read more
【Introduction】Anyone working as an electrician knows that when equipment suddenly shuts down, the most frustrating task is troubleshooting external faults: measuring a bunch of sensors, solenoids, and wiring repeatedly, checking from the power supply to the load, only to find after half an hour that it was a broken wire on the proximity switch. This … Read more
Can This Resume Help Find a PLC Internship? I don’t really understand PLCs and microcontrollers, but I see a lot of content on my resume related to microcontrollers and embedded systems. Why am I looking for a PLC internship? Are microcontrollers and PLCs very similar? Because I want to explore both directions, but I haven’t … Read more
HELLO everyone, a few days ago someone asked if Profinet can transmit floating point numbers? Today, let’s talk about how robots send and receive floating point numbers. If you already know how to do it, please take a look at my implementation and see how it differs from yours. Quick Navigation: 1 What is a … Read more
Driven by the wave of digitalization, the Internet of Things (IoT) is uniquely transforming the landscape of industrial automation. Among these changes, the MQTT protocol plays a crucial role in this revolution due to its lightweight and efficient nature. Data acquisition and protocol parsing from PLCs (Programmable Logic Controllers) are key technologies in the field … Read more
Reading time required 5 minutes Speed reading only takes 2 minutes Introduction With the continuous development of automation control technology, PLCs (Programmable Logic Controllers) play an important role in industrial production. The real-time performance of PLC control systems, especially the calculation of cycle time, is crucial for optimizing system performance, improving control accuracy, and response … Read more
With over ten years of experience, I have seen many beginners exploring the world of PLCs. Today, I will introduce you to Mitsubishi PLCs, the “main force in the industry,” explaining the basic knowledge in the simplest way possible. What is a PLC? Why Learn It? A PLC (Programmable Logic Controller) is essentially an “industrial … Read more
“The Path of an Excellent Engineer in Three Stages” 1. Basic Stage: Siemens TIA Portal PLC Technology. 2. Intermediate Stage: TIA Portal and C# Advanced Language Technology. 3. Advanced Stage: Standardized Programming Methods for PLCs. The Path of Standardization! Modbus communication is a very open and universal protocol, and it is one of the most … Read more
When designing automation equipment, we often need to monitor and control various pressure sensors, instrument signals, or temperature sensors. Many of these instruments will have analog input or output signals, and we need to use PLCs to read these analog signals and output analog signals to the instruments. What exactly is an analog signal? Some … Read more
When writing programs for the Siemens S7-1200, various OB organization blocks need to be inserted into the program blocks according to project requirements to address and view organizational events, hardware and software faults, and status information that occur during PLC operation. Today, we will focus on the Startup organization block (OB100) to discuss its function … Read more