Hello, welcome to the IoT Planet! If you have an IoT project, look for IoT Planet! The planet focuses on sharing and communication of IoT technology, applications, and products, providing project implementation planning, product selection recommendations, custom development, and other services. In the era of the Internet of Everything, industrial sites are still filled with … Read more
Today, I am sharing a set of course materials on the basics of PLC (Programmable Logic Controller). The main content is as follows, and I hope it can help you.
As of now, there is no strict boundary between DCS and PLC. In the eyes of most people, large systems are referred to as DCS, while smaller systems are called PLC. Of course, this statement is not entirely incorrect, but it is also not entirely accurate. Let us redefine this concept. First, what are the … Read more
1. Internal Structure of PLC Currently, the mainstream PLC brands include Siemens (Germany), Mitsubishi (Japan), Omron (Japan), Schneider (France), etc. Different brands use different programming software, and even different models of the same brand may use different software. For example, Siemens PLC has four programming software options: STEP 7 Microwin (S7-200), STEP 7- Micro/WIN SMART … Read more
“The PLC hasn’t arrived yet, but the manager wants the program online?” Don’t panic! Last night, I used the built-in simulator of TIA Portal V19 to run an 800-step 3D warehouse program overnight, with 0 errors and 0 crashes. Today, I am sharing this “no physical debugging secret”; just follow these steps, and you can … Read more
There are many knowledge points to master regarding Siemens PROFIBUS-DP, and the difference between knowing and being familiar with them is quite significant. Previously, we received feedback from some users requesting more information on this topic. Therefore, today I will mainly share the three types of devices defined by Siemens PROFIBUS-DP. If you find this … Read more
[Image] Click the blue text to follow immediately [Image] 1. The programmable controller uses a microprocessor as the central processing unit, which can control logical quantities and can also control analog quantities. Reference: Analog quantity 2. The PLC has logical operation functions and can describe various connections such as the series of relay contacts and … Read more
[Image] Click the blue text to follow immediately [Image] 1. The programmable controller uses a microprocessor as the central processing unit, which can control logical quantities and also control analog quantities. Reference: Analog quantity 2. The PLC has logical operation functions and can describe various connections such as the series of relay contacts and parallel … Read more
Exploring the ‘Digital Brain’ of Factories: PLCs and Data RegistersWhy do factories need a “brain”? In modern production lines, when robotic arms accurately grasp parts, conveyor belts deliver materials in sync, and inspection devices monitor quality in real-time, what is behind the unified command of all this? The answer lies at the core of every … Read more
