Operation 
5.2.1  Function keys (soft keys) 
The F1…F12 key functions are displayed with assigned symbols:  
 
Example 
 
 
Function keys with no assigned symbol are not active: 
 
 
 
The function key symbols normally have grey sidebars.  
Colour bars 
Certain statuses are indicated by the change in colour or flashing of these sidebars:  
 
 
Grey 
Examples 
Significance here: no geometrical limit programmed 
 
Green  Significance here: Geometrical limits are programmed and active 
 
Red  Significance here: Geometrical limit has been exceeded here 
 
Yellow 
Significance here: Highlights selected digit when entering service 
code 
 
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