In the field of industrial control, time is a core dimension that runs through the entire production process—from timestamping device operation logs to timed production scheduling, and to accurately tracing the moment of faults, all of which rely on the PLC’s precise control of real-time. The S7-1200 PLC, as the core device of Siemens’ small … Read more
Due to limited cloud storage, the following video tutorials will be available for 30 days until other tutorials are uploaded. I apologize for any inconvenience. 1-01 Basic Knowledge 1 2-02 Basic Knowledge 2 3-03 Basic Knowledge 3 >>>>>>>>>>>>>>>> 6-06 Introduction to TIA Portal Software – 1 7-06 Introduction to TIA Portal Software – 2 8-08 … Read more
This article will detail the Modbus communication configuration process between the S7-1200 PLC and the V20 inverter. 1. Required: One S7-1200 PLC with an RS485 communication module and one V20 inverter. 2. Wiring method for the RS485 module and the V20 inverter: Connect the red wire to the P+ terminal and the green wire to … Read more
Introduction The Siemens TIA Portal platform is an advanced software development platform for modern automation control systems. In this software platform, data blocks are important elements used for storing data. What are Optimized and Standard Data Blocks In Siemens TIA Portal, data blocks are important structures for storing program data, where the main difference between … Read more
Configuring I-Device in the same project I-Device refers to IO devices equipped with a CPU. All CPUs of the S7-1500 PLC and S7-1200 PLC can function as I-Devices and IO controllers. Below is an example demonstration of motor control using the I-Device functionality. The CPU1511-1 PN of the S7-1500 PLC communicates with the CPU1214C AC/DC/RLY … Read more
Today, I would like to discuss a phenomenon related to the memory of Siemens PLCs. This concept is a fundamental knowledge point that is typically covered when learning about PLCs, often taught by instructors or institutions. However, many people may not pay much attention to it in actual projects.Phenomenon: Last year, during a renovation project … Read more
S7-1200 PLC Programming Instructions The programming instructions for the S7-1200 PLC are used in the Siemens TIA Portal environment, covering functions from basic to advanced. Below are the key instructions and considerations organized in a structured manner. 1. Basic Instructions 1. Bit Logic Instructions Normally open contact (I0.0), normally closed contact (NOT I0.1), coil output … Read more
It is well known that many brands of PLC programs can be decrypted through software, making the program very transparent once decrypted, and thus visible to others. However, completely locking the PLC program when selling the device to others is impractical, as the client would be unable to maintain it. Moreover, confidentiality and rights protection … Read more
Members of the training team encountered a problem during the competition: After completing the PLC project and the touch screen, they were able to download it to the hardware, but pressing the buttons on the touch screen would trigger an error message. The students were unable to resolve this issue on-site, and after the competition, … Read more
Many believe that the electrical automation industry is favorable, but in reality, it is quite challenging. Let’s start with the essential skill – PLC programming. PLC, the brain of industrial control devices, is essentially standard equipment. However, this brain, like humans, has a “nationality” distinction, which for PLCs means – brand. Each brand develops its … Read more