Operation 
  10.3 Device with key panel 
SIMATIC Panel PC 877 
Operating instructions, Release 07/2006, A5E00877780-01 
10-5 
Control keys 
The control keys activate editing functions and control functions in different applications: 
 
Figure 10-4  Control keys, taking the 15" control unit as an example 
 
(1)  Cancel 
(2)  Acknowledge 
(3)  Enter 
(4)  Delete 
(5)  Insert/Print screen (in combination with F
N
) 
(6)  Application-specific functions and special key codes, compare keyboard table in the appendix 
(7)  Application-specific functions and special key codes, compare keyboard table in the appendix 
(8)  Toggling between lower-case letters and upper-case letters 
(9)  Function key 
(10)  Call Help 
(11)  Tabulator 
(12)  Backspace