Introduction In actual work sites, PLCs are often used to control inverters. There are several ways for PLC to control inverters, such as terminal control, analog control, and communication control. Among these, communication control has certain advantages over the first two methods, such as the ability to read multiple data from the inverter with just … Read more
Abstract: As customers have higher requirements for the environment of filling equipment, a large number of purification fans (FFU) have been applied to filling equipment. Economic cost, simple and quick installation, operation, and maintenance have become the key factors in the control scheme. To address this issue, we propose using Siemens PLC with MODBUS TCP … Read more
1. Implementing Vending Machine Control System with KingView and Microcontroller Modbus Communication: KingView configuration software acts as the Modbus RTU master, while the microcontroller serves as the Modbus RTU slave. The microcontroller is programmed according to the logical requirements of this control system, and the KingView software can monitor and control the system’s inputs and … Read more
Having previously worked with microcontrollers and the following 20 types of PLCs for Modbus RTU serial communication, I am now sharing the correspondence table of these 20 PLC input, output, and register components with their Modbus address numbers. Mitsubishi X components support Modbus function code 02; Y components support Modbus function codes 01, 05, and … 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
Search on WeChat Technical Training Introduction This article will detail the steps for connecting the Siemens S7-200 SMART PLC with the Smart Line touch screen via Modbus RTU communication. 1. Hardware Connection 1. Smart Line Touch Screen 485 Port Pin Definition As shown in Figure 1: Figure 1 2. 200 SMART PLC 485 Port Pin … Read more
Hello everyone, good evening! How have you all been recently? Has the pandemic affected you in any way? Today is still a technical article: Siemens PLC Communication – Modbus RTU Communication – New Features of S7-1200 Modbus (RTU) Instructions V4. Modbus RTU Communication: S7-200 smart Modbus RTU master station communication (√) S7-200 smart Modbus RTU … Read more
1. What is MODBUS? 1. Basic Concepts MODBUS is a communication protocol initially advocated by MODICON (now a brand of Schneider Electric). It has gradually been recognized as a standard communication protocol through practical applications by most companies. As long as data communication or transmission is conducted according to this protocol, different systems can communicate … Read more
The JLINK driver is installed, and the device manager recognizes it, but the options for SW and JTAG in MDK are grayed out (this is not an issue with JLINK). Therefore, downloading and simulation cannot proceed. I tried uninstalling the JLINK driver and re-installing it, but that didn’t solve the issue, so I decided to … Read more
1. ULINK2 Emulator ULINK2 is the latest emulator from ARM designed for use with RealView MDK. It is an upgraded version of the ULINK emulator. ULINK2 not only has all the features of the ULINK emulator but also adds support for Serial Wire Debug (SWD), return clock support, and real-time agents. Development engineers can easily … Read more