The software used to program and configure a Siemens HMI is called SIMATIC WinCC. It is part of Siemens’ TIA Portal (Totally Integrated Automation) platform, which provides a common environment for both PLC and HMI programming. With WinCC, you can design screens, create process graphics, set alarms, and configure communication between the HMI and PLC. It allows you to build a complete visualization system that operators can use to monitor and control industrial processes. Depending on the application, Siemens offers different versions like WinCC Basic, WinCC Comfort, WinCC Advanced, and WinCC Unified.
The latest version, WinCC Unified, uses modern web technologies such as HTML5, SVG, and JavaScript, making it compatible across PCs, panels, and mobile devices. This ensures flexible and responsive visualization for Industry 4.0 environments. Once the project is designed in TIA Portal, it is transferred to the HMI device where the WinCC Runtime software runs it in real time. This runtime handles all operator interactions and displays live process data from the connected PLCs. In short, SIMATIC WinCC is the core software used for all Siemens HMI systems, offering scalable, user-friendly, and powerful visualization tools for any industrial automation project.