What is the primary function of the main menu key in smartHMI?

The main menu key in smartHMI serves the fundamental purpose of displaying menu items. This function provides users with access to various operational options and features within the interface, allowing them to navigate the system effectively. By pressing the main menu key, users can see a structured list of available commands or settings, facilitating efficient interaction with the smartHMI.

This aspect of the menu key is essential because it aids in user navigation, ensuring that operators can easily find and select the appropriate functions necessary for their tasks. Being able to display menu items is critical in a user-friendly interface like smartHMI, where quick access to various features can enhance productivity and ease of use for operators.