Click the blue text to follow us How to quickly diagnose issues in control systems based on Siemens PLC? These diagnostic tools and methods will make your troubleshooting more efficient and precise! Hello everyone! I’m Hanhan. Today, let’s talk about a tough problem in industrial control systems—fault diagnosis. You know, a small fault can halt … Read more
Click on the blue text to follow us [PLC Fault Diagnosis] How to Quickly Troubleshoot Common Faults of Siemens S7-1200? 10 Practical Tips to Make You an Expert in Fault Diagnosis! The Siemens S7-1200 PLC is known for its stability and rich functionality, but even the best equipment can experience faults. This article shares 10 … Read more
Search WeChat Electrical Engineering Learning This article will introduce the detailed steps of Modbus communication between the S7-1200 PLC and the V20 inverter. 1. Find an S7-1200 PLC with an RS485 communication module and a V20 inverter. 2. Connect the RS485 module to the V20 inverter. The wiring method is to connect the red wire … Read more
【Introduction】MODBUS TCP instruction V6.0 adds Modbus client function code 23, which allows reading and writing one or more holding registers from the server in a single request operation, eliminating the programming workload of polling and improving work efficiency. Join the exclusive group for electrical automation technology exchange Join the exclusive group for electrical automation procurement … Read more
Hello everyone, good evening! Smart Control Education will officially go on holiday on February 29, 2022~ If you have any questions, you can add Xiao Zhi V: 18018269808 ; perhaps we haven’t met in person, but we have encountered each other online,Smart Control Education wishes everyone: Prosperity in 2022! What did Smart Control experience and … Read more
Introduction: In actual work environments, PLCs may communicate and exchange data. Typically, communication requires devices to be on the same network segment. However, what if our devices are not on the same segment? This article introduces how two PLCs can perform TCP/IP communication to exchange data when they are not on the same network segment. … Read more
10.25-29 Chongqing Suzhou No Tin Siemens S7-1200/1500 PLC TIA Technology Practical Class Enrollment Open Modbus RTU Communication Discussion on Modbus RTU Communication In modern highly integrated industries, communication between PLCs is frequently used. Common communication protocols include Modbus, Profibus DP, Profinet, CANOPEN, etc. Today, we will explain how two PLCs communicate using Modbus RTU on … Read more
Hello everyone, good evening! Beginner’s Guide to TIA Portal: MODBUS-RTU Communication Configuration Continuing from the previous article, we will explain how to use MODBUS communication commands. MODBUS communication requires three commands: ① MB_COMM_LOAD command ② MB_MASTER command (Master command) ③ MB_SLAVE command (Slave command) The communication commands are located in Communication – Communication Processor – … Read more
The TIA V13 SP1 software provides two versions of Modbus RTU commands: Figure 1. Two Versions of Modbus RTU Commands The earlier version of the Modbus RTU command (MODBUS (V2.2) in Figure 1) can only communicate via the CM1241 communication module or the CB1241 communication board. The new version of the Modbus RTU command (MODBUS(RTU) … Read more
Search on WeChat Technical Training 1. How to Determine the Model of the Screen Please confirm that the screen you are using is the Comfort series screen. You can check the label on the back of the screen to verify the model and order number. The common order numbers for the Comfort screens start with … Read more