Migration Guide Comfort Panels 
Getting Started, 03/2011, A5E03478626-01 
11 
Replacing an HMI device 
2
2.1  Overview of HMI devices 
Differences in design and operating concept after replacement of HMI devices 
This section describes the differences and additional functions of the Comfort HMI devices in 
relation to enclosure, display, interfaces and data input. 
Enclosure 
●  Mounting in vertical format 
The Comfort HMI devices with touch screen are suitable for vertical mounting. 
●  Enclosure material 
–  4" versions with plastic enclosure 
–  7" , 9" and 12" versions with enclosure front made of die-cast aluminum 
Display 
●  All Comfort HMI devices feature a TFT widescreen display with the following properties: 
–  Extended viewing angle 
–  16 million colors 
–  Higher resolution than predecessor device 
The KTP400 Comfort has the same resolution as the TP 177B 4".