Search on WeChat Technical Training MODBUS Communication Between S7-1200 and V20 For MODBUS communication between S7-1200 and V20, the S7-1200 PLC needs to add a CM1241 RS485 communication module. 01 Communication Connection The V20 inverter is connected to the PLC via RS485 cable, using the standard MODBUS communication protocol. Through MODBUS communication, the PLC sends … 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
Recently, I used the S7-1200 to collect data from a certain flow sensor via Modbus-RTU. The Siemens side chose the CM1241 (RS422/485) (order number 6ES7 241-1CH32-0XB0, firmware version V2.2), and the CPU is 1214C with firmware version V4.2. I thought the debugging would be simple, but it took a lot of time, and I consulted … Read more
Search on WeChat Technical Training When it comes to inverter communication, there are analog control, communication control, and terminal control. This article will guide you through the understanding of Modbus-RTU communication between the S7-1200 PLC and the HD20 inverter. Speaking of the Modbus-RTU communication protocol, I believe everyone is familiar with it, as it is … Read more
Search on WeChat Technical Training This article will introduce the detailed steps for Modbus communication between the S7-1200 PLC and the V20 frequency converter. 1. Find an S7-1200 PLC with an RS485 communication module and a V20 frequency converter. 2. Connect the RS485 module to the V20 frequency converter. The wiring method is to connect … Read more
Search WeChat Technical Training Many students learning about Weintek touch screen communication skills generally know how to communicate with PLCs, such as M area addresses, V area addresses, and Q area addresses, which are quite simple. Especially for DB block addresses like S7-1200, we often don’t know where to start. So how do we associate … Read more
Introduction This article introduces the implementation process of an Automated Guided Vehicle (AGV) control system, which is divided into hardware setup and software design. (1) Onboard Controller SPRING FESTIVAL 1.1 Types of Onboard Controllers The onboard controller is the core of the control system and the entire AGV. Which type of controller should be chosen? … 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
Part One: Application Overview In today’s era of Industry 4.0, the Siemens S7-1200 Programmable Logic Controller (PLC) has become a core technology in the field of industrial automation. This tutorial will guide beginners to explore the application of S7-1200 in practical industrial control, using a smart temperature control system as an example, helping readers quickly … Read more
Recently, I saw many engineers at the factory site worrying about connecting devices to the network. With the S7-1200, a powerful tool, and the right communication solutions, connecting devices to cloud platforms is not that difficult. Today, let’s discuss how to use the S7-1200 to implement industrial IoT applications, from hardware selection to cloud platform … Read more