Introduction of Siemens Sinumerik 808D Operator Panel.
1 – Vertical and horizontal softkeys (Calls specific menu functions).
2 – Return key (Returns to the next higher-level menu).
3 – Menu extension key (Reserved for future use.
4 – Alphabetic and numeric keys.
5 – Control keys.
6 – Alarm cancellation key (Cancels alarms and messages that are marked with this symbol).
7 – On-board assistant key (Provides step-by-step guides on basic commissioning and operation procedures).
8 – Help key (Calls help information).
9 – Cursor keys.
10 – Operating area keys.
11 – USB interface.
12 – Status LEDs.