Overview of MODBUS TCP Communication with S7-1200 Integrated PN Interface Modbus TCP is a standard network communication protocol that communicates via TCP/IP through the PN interface on the CPU, eliminating the need for additional communication hardware modules. Modbus TCP uses open user communication connections as the communication path, supporting a maximum of 8 hybrid client … Read more
S7-1200 MODBUS TCP Communication Multi-Request Handling Rules to be followed for individual client connections: 1. Each “MB_CLIENT” connection needs to use a different background data block; 2. Each “MB_CLIENT” connection must specify a server IP address; 3. Each “MB_CLIENT” connection must specify a unique connection ID; 4. Whether a unique IP port number is required … Read more
Hi guys, due to personal study and work reasons, I have been silent for more than half a year. Finally, I have a break from my busy schedule, and today Robert Xiang is back to meet everyone! A while ago, many netizens emailed me asking about the Modbus communication in Elmo’s Platinum Maestro motion controller. … Read more
Click the blue text above to follow us for more content Control Requirements: Use MODBUS TCP communication for data exchange between two PLCs 1. Read data from the server addresses 40001~40005 and store it in VW200~VW208; 2. Write data from VW210~VW218 into the server’s 40006~40010; 3. Write data from VB220 into 00001~00008. 1. Open the … Read more
Linux servers in a normal operating environment require precision, stability, efficiency, and security, and there are many tips for optimization. This article shares nine experiences for optimizing Linux servers, covering email servers, web servers, network configuration, memory management, and more. 1 Time Synchronization Servers in a normal operating environment require precise time. My email server’s … Read more
In the world of the Internet of Things, a typical network architecture is as follows: first, terminal devices or sensors collect signals or information. For devices that cannot connect to the internet or intranet, the sensors send the detected information to a gateway, which then sends the information to the server. Some devices, like smartphones, … Read more
Scan to FollowLearn Embedded Together, learn and grow together 【One Minute Talk on Embedded】, striving for brevity, aiming to finish reading in about one minute. Each article discusses a topic related to embedded systems, such as technology, workplace, learning methods, or a piece of code. If any friends want to express their opinions or want … Read more
Hello, electrical buddies! Today, I, Old Bai, will talk to you about the industrial network configuration of the Siemens S7-1200 PLC. This topic might sound a bit high-end, but don’t worry, follow me step by step, and I guarantee you can easily master the network communication of this “big guy”. Industrial Ethernet: The PLC’s “Social … Read more
A True Master Always Retains a Learner’s Heart! 1. Project Overview An enterprise-level IoT platform with open-source code for TCP/UDP/MQTT/HTTP. 2. Functional Features Notification Management: The notification management module is responsible for handling various notification messages generated within the IoT system, including device status changes, alarm information, and system events. This module can send, receive, … Read more
This article is a submission from a friend, Han Shijun. If you have excellent articles you would like to submit, feel free to contact me. Everyone relies on network communication every day, but how do these devices communicate with each other? I wrote this article so you can read it from thousands of miles away. … Read more