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
For more reading, please follow us In an industrial automation workshop, have you ever wondered: who precisely commands the robotic arms to complete welding, enables the assembly line to achieve unmanned sorting, and adjusts the motor speed automatically according to production needs? The answer lies in an “industrial brain” — the PLC (Programmable Logic Controller), … Read more
In SINUMERIK ONE, there is a “PI service” function, but the manual does not clearly define what “PI service” is. I understand it to mean that the PLC issues commands for the NC to complete a specific task. The basic program of the PLC in SINUMERIK ONE provides the FB7 basic program (Request PI service … Read more
During navigation, ships experience rolling and pitching due to external forces such as wind and waves, which jeopardizes stability and comfort. The anti-roll fins, as a common device, actively control the fins to generate counter-torques to suppress rolling. Traditional anti-roll fin control systems rely on analog circuits or dedicated controllers, which have inherent drawbacks such … Read more
Practical tips for daily applications of PLCs, hoping to assist everyone in their routine use of PLCs.1Grounding Issues The grounding requirements for PLC systems are quite strict; it is best to have a dedicated grounding system, and attention should also be paid to ensuring that other devices related to the PLC are reliably grounded. When … Read more