An introduction to the Operator Panel of the Sinumerik 840D cnc control.
A : Display
B : Alphanumeric key pads. Correction / Cursor keys.
C : Mouse and Mouse keys.
1 : Machine area key.
2 : Recall
3 : Soft bar (Horizontal).
4 : ETC key (Menu extension).
5 : Area changeover key.
6 : Soft bar (Vertical).