Commissioning the device 
  4.3 Switching off the device 
SIMATIC IPC677E 
Operating Instructions, 04/2019, A5E45117996-AA 
57 
Hardware reset 
With the hardware reset, you can restart the device if it does no longer respond to keyboard 
or mouse input.  
Any running operating system will not shut down safely. 
 
If a hardware reset is performed, the device undergoes a hard reboot.  
•  Data in the main memory is deleted. 
•  Data on the hard disk drive may be lost. 
•  The device may be damaged. 
Perform a hardware reset only in the case of an emergency. 
Procedure 
1.  Press the on/off button for more than 4 seconds. The unit switches off. 
Information on the position of the buttons is available under: "Side view, left (Page 17)". 
See also 
General safety instructions (Page 25)