In the upgrade and transformation of old equipment projects, it is inevitable to involve the replacement and upgrade of PLCs. However, sometimes the original PLC program of the control system is lost, and a complete annotated original program cannot be found; at other times, the original program may contain proprietary technology blocks; or sometimes the … Read more
Speed Control of G120 Frequency Converter This example demonstrates speed control of the G120 frequency converter via PROFINET. The S7-1500 PLC’s CPU1511-1 PN controls the G120 frequency converter for speed regulation via PROFINET. Steps and Analysis: (1) Find the GSD file for the G120 frequency converter on Siemens’ website and import it into TIA Portal, … Read more
【Introduction】Starting from version V15 of TIA Portal, the Modbus (RTU) instruction set has been updated to version V4.0 and above. The S7-1200 firmware must be at least version V4.2. This article mainly discusses the new features of Modbus RTU version 4 and above. S7-1200 Motion Control Example Download S7-1500 Analog Module Wiring Diagram PLC Manual … Read more
Storage Card Functionality The S7-1500 uses the SIMATIC storage card as a program memory. The SIMATIC storage card primarily has the following functions: As the CPU‘s loading storage area, the CPU cannot operate without the storage card. Can be used to update the firmware version of the S7-1500 CPU and centralized IO modules. Read service … Read more
【Introduction】Siemens’ first virtual PLC—S7-1500V was actually launched last year, but there has been little coverage in China. Today, let’s discuss it.Editor | Automation and Engineering TechnologyAuthor | Lao Jing Keywords | Siemens Virtual PLC S7-1500 Approximately 1300 words | Suggested reading time 5 minutesSerious Statement: Unauthorized reproduction is prohibited!In today’s digital age, the industrial automation … Read more
In the era of Industry 4.0, predictive maintenance of equipment has become an important development direction for the manufacturing industry. I remember when I implemented an equipment management project at a large steel plant last year, the client proposed a seemingly impossible requirement: to use the existing S7-1500 PLC to implement a simple AI algorithm … Read more
Industrial IoT System Integration: Application of S7-1500 in Smart Factories Hello everyone, I am Daodao. Today, let’s discuss a particularly hot topic – the application of Siemens S7-1500 PLC in smart factories. Many friends have asked me: “Daodao, factories are now undergoing intelligent transformation, where should we start?” So today, I will take S7-1500 as … Read more
The Expert Speaks The Internet of Things and the concept of connecting everything is quite trendy, isn’t it? Upon seeing Alibaba Cloud’s IoT platform, I thought about directly connecting the PLC to the Alibaba Cloud IoT platform. After several days of testing, I finally succeeded. ▲ Siemens’ MQTT client library ▲ Publishing messages ▲ Platform … Read more
S7-1500 MODBUS Communication MODBUS MASTER: First configure the hardware, as shown below: Then open OB1, and program, as shown below: First call the initialized block MODBUS COMMONLOAD Pin description: REQ: The command starts on the rising edge (0 to 1). PORT: After installing and configuring the CM, you can find the CM port value in … Read more
Hello everyone, I am Liu Lu. Today we will discuss the multi-machine coordinated control of S7-1500 PLCs. This technology allows multiple PLCs to work together, just like a group of friends working together to complete a big project. Whether you want to enhance your factory’s automation level or want to explore advanced techniques, this technology … Read more