Operating the device 
  4.1 Operating touch devices 
Basic Panels 
Operating Instructions, 04/2012, A5E02421799-03 
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Operating function keys 
The function keys can be assigned global or local functions: 
●  Function keys with global function assignment 
A function key with global function assignment always triggers the same action on the 
HMI device or in the PLC, regardless of the currently displayed screen. An example of 
such an action is the activation of a screen, or the closing of an alarm window. 
●  Function keys with local function assignment 
A function key with local function assignment is screen-specific and is therefore only 
effective within the active screen. 
The function assigned to a function key can vary from screen to screen. 
The function key can be assigned only a single function, either global or local, within a 
screen. Local function assignments override global function assignments. 
4.1.2  General functions of the screen keyboard 
The following keys are available on the screen keyboard of all Basic HMI devices with touch 
functionality: 
 
Cursor left 
Cursor right 
Delete character 
Cancel input 
Confirm input 
Displaying infotext. This key only appears when an infotext has been configured for the 
operating element.