Programming and Operating Manual (Milling) 
8  6FC5398-4DP10-0BA1, 01/2014 
 
Control elements on the PPU 
Elements on the PPU (Panel Processing Unit) front  
The following illustration uses PPU161.2 as an example to show control elements available on the PPU: 
 
 
① 
Vertical and horizontal softkeys
 
Calls specific menu functions 
⑦ 
 
Provides step-by-step guides on basic commissioning 
and operation procedures 
② 
 
Returns to the next higher-level menu 
⑧ 
 
Calls help information 
③ 
 
Opens the next lower-level menu or navigate between 
the menus of the same level 
⑨ 
 * 
④ 
Alphabetic and numeric keys 
* 
⑩ 
* 
⑤ 
 * 
⑪ 
 * 
⑥ 
 
Cancels alarms and messages that are marked with 
this symbol 
⑫ 
 * 
* For more information, refer to the table below. 
Alphabetic and 
numeric keys 
  To enter the upper character on an alphabetic/numeric key, keep the following key 
pressed:  
 
The icons on the following keys are available only with PPU161.2 and PPU160.2. 
 
The icon on the key is a hint that you can press both <CTRL> and this key as 
shortcuts for capturing screens.