Product introduction: Siemens man-machine interface (touch screen) Siemens man-machine interface configuration and simulation debugging methods, including variables, screens, animations, alarms, user management, data records, trend charts, recipes, reports, running scripts, The configuration method of Ethernet communication, and the usage method of text display TD200. Introduces the engineering example of applying man-machine interface in the control system and the method of offline simulation and online simulation of the operation of man-machine interface with WinCCflexible, and uses WinCCflexible and STEP7 to simulate the control composed of man-machine interface and S7-300/400 The method of operation of the system.