The troubleshooting steps for a PLC (Programmable Logic Controller) typically follow a systematic and detailed process to ensure accurate and efficient identification and resolution of faults. Below is a comprehensive guide to PLC troubleshooting steps: 1. Preliminary Observation and Assessment 1. Observe Appearance and Indicator Lights: ● Check the PLC device for any visible physical … Read more
The EVE 200Smart PLC can utilize the Modbus RTU instruction library from Siemens software, or it can use EVE’s own UN Modbus RTU instruction library, providing users with two options. The difference between the two libraries is that Siemens’ MODBUS library is implemented in the upper-level PLC program, which is large in size, occupying almost … Read more
In the field of industrial automation, stable communication between the host computer and PLC (Programmable Logic Controller) is crucial for the normal operation of the system. However, different manufacturers have varying PLC protocols, making the debugging process complex and extending the development cycle, which poses many challenges for engineers. Today, we introduce a powerful open-source … Read more
‖ System Learning Life is like a marathon; sometimes you need to pause and take a breather to go further. In this issue, we will discuss what RS232 is, a term frequently heard in the industry, especially in the industrial control sector. What is RS232? It is a form of serial data transmission, simply put, … Read more
Application Overview Hello everyone! Today, I want to talk about the application of the S7-200 PLC combined with the CANopen bus in the new energy vehicle test bench. The development of new energy vehicles is progressing rapidly, and the test bench serves as the “health check center” for these vehicles, capable of detecting various performance … Read more
Click to follow and never lose your way in learning! Last time, we ventured into the mysterious world of the MODBUS protocol and conducted a preliminary exploration of this “big player” in industrial communication. I wonder if you are still immersed in that wonderful learning atmosphere? If your knowledge isn’t solid, make sure to review … Read more
Abstract Using the Siemens S7-400 PLC as the main controller, this system integrates an edge computing gateway for real-time communication with the PLC, enabling data collection and protocol conversion. Data is sent to the cloud platform via the Internet of Things (IoT). After editing on the cloud platform, remote PCs can monitor the operational data … Read more
Industrial control systems generally refer to a variety of control systems, including Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems (DCS), and Programmable Logic Controllers (PLC), among others. 01 Five-Layer Architecture The classic hierarchical model of industrial control systems in the international standard IEC62264-1 divides typical industrial control systems into five levels based … Read more
Recently, the PLC control system retrofit project for gantry cranes, participated by Lianyungang Port Dongfang Company, successfully passed acceptance. As the first port in the country to initiate this project, the successful acceptance marks a substantial breakthrough in the domestic replacement process of PLC systems for gantry cranes, laying a solid foundation for the subsequent … Read more
“PLC Remote Diagnostics: Expert Online Response in Seconds, Reducing Equipment Downtime Loss by 80%!” Hey! Brothers and sisters, today let’s talk about something exciting! Can you guess what the most blood-pressure-raising scene in a factory is? It’s not the roaring machines or the boss checking in, but rather—sudden production line downtime, with engineers stuck in … Read more