Commissioning the device 
  4.3 Parameter assignment for Comfort Panel 
Comfort Panels 
Operating Instructions, 07/2017, A5E36770603-AB 
93 
Synchronizing the date and time with the PLC  
The date and time of the HMI device can be synchronized with the date and time in the PLC 
if this has been configured in the project and the control program. Additional information is 
available here:  
 "SIMATIC Safety - Configuring and Programming" programming and operating manual 
(http://support.automation.siemens.com/WW/view/en/54110126
) 
 
Synchronizing the date and time 
If the data and time is not synchronized and time-based reactions are triggered by the HMI 
device, malfunctions in the PLC may occur. 
Synchronize the date and time if time-based reactions are triggered in the PLC. 
 
Changing password protection 
You can protect access to the Control Panel with a password. If you configure password 
protection, "SecureMode" is automatically enabled for the HMI device. "SecureMode" 
additionally protects the taskbar and the desktop against unauthorized access.  
The Control Panel is open.  
 
Note 
Password not available 
If the password is no longer available, the following operator controls are no longer enabled:
 
  Control Panel 
  Taskbar 
  Desktop 
All data on the HMI device is deleted when you update the operating system!
 
Therefore use the password to protect against loss.