Siemens all-subject + TIA Portal + EPLAN electrical drawing video recordings are available for low-price packaging! Chuangkong Education Siemens All-Subject Class Course Introduction 01 Connection Quantity The S7-200 SMART CPU can connect to Siemens HMI devices that support the PPI protocol either through the integrated RS485 port or signal board, or through the integrated Ethernet … Read more
Before discussing RS485 communication, it is necessary to mention RS232 communication. If you are not familiar with RS232 communication, don’t worry. You have definitely seen and used the RS232 interface (if you don’t believe it, you can check behind your desktop computer at home). In fact, many people use the Siemens PCPPI programming cable to … Read more
Search on WeChat Technical Training Siemens, as one of the earliest industrial control manufacturers to enter the Chinese market, has maintained a very high market share. Siemens PLCs have excellent quality, and their network stability and openness are favored by industrial control personnel. Moreover, the variety of programming software is convenient to use, making it … Read more
Click on the blue textFollow me! ☀The leading brand in automation remote education, the official WeChat platform of Jicheng Training Network! Follow Jicheng, and technical improvement is no problem! Source: Jicheng Training Network (Teacher Liang Zhibin) 1.3.1 PPI Network The PPI protocol is a communication protocol specifically developed for the S7-200. The communication ports (Port0/Port1) … Read more
/ Today’s Tech News / Recently，Google is improving its chatbot Bard, which can embed images in chat results. While images can indeed be provided in chat results, there is still a gap between the results and Bing chat. Although users can currently chat with Bard in English, Japanese, and Korean, image support in search results … Read more
1. Monkey is a testing tool that comes with the Android SDK. During testing, it sends pseudo-random user event streams to the system, such as key inputs, touchscreen inputs, gestures, etc., to perform stress testing on the application being developed, and it also outputs logs. In fact, this tool can only perform some stress tests … Read more
Currently, the development of mobile apps has become very popular and booming. However, most mobile testing is still stuck in manual testing. Because mobile app development needs to adapt to different devices, for example, an Android app needs to support different versions, not only the latest version but also older versions. This leads to the … Read more