Siemens SIMATIC S7-1500 Automation System System Manual page 145

Control keys
The following keys are available on the CPU's display:
● Four arrow keys: "up", "down", "left", "right"
● An ESC key
● An OK key
Functions of the "OK" and "ESC" keys
● At menu commands in which an entry can be made:
● At menu commands in which no entry can be made:
S7-1500 Automation System
System Manual, 01/2013, A5E03461182-01
Figure 12-2 Control keys
Note
If the display is in Energy-saving mode or in Standby mode, this mode can be exited by
pressing any key.
– OK → valid access to the menu command, confirmation of input, and exit from the edit
mode
– ESC → set the original contents (i.e., changes are not saved) and exit from edit mode
– OK → to next submenu item
– ESC → back to previous menu item
Display of the CPU
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