Replacing an HMI device   
2.3 Interfaces 
  Migration Guide Comfort Panels 
16  Getting Started, 03/2011, A5E03478626-01 
2.3  Interfaces 
Location and type of interfaces for predecessor devices and Comfort HMI devices  
The Comfort HMI devices always have the same interfaces as the predecessor devices.  
Exception
: The RS-232 interface of the OP 77B predecessor device is not available for the 
Comfort HMI devices.  
The Comfort HMI devices have the following 
additional
 interfaces: 
●  All Comfort HMI devices: 
USB type Mini-B for commissioning with a configuration PC 
●  Comfort HMI devices as of KP/TP700 Comfort: 
–  Audio Line IN / OUT as of KP/TP700 Comfort, e.g. for connecting an audio amplifier 
–  Second interface USB type A, for connection of I/O devices such as printers or 
keyboard 
–  Second interface PROFINET (Ethernet) 
The following figure shows the interfaces on the predecessor devices of the KP400 Comfort 
and KTP400 Comfort. 
  
  
   
23%73%
.3&RPIRUW
.73&RPIRUW
 
①  USB type A 
②  Mains 
③  PROFINET (Ethernet) 
④  Connection for equipotential bonding (grounding) 
⑤  PROFIBUS (Sub-D RS 422/485) 
⑥  Sub-D RS232 
⑦  USB type mini B