Siemens SIMATIC PANEL PC 877 - Manual (Page 71)

Operation and configuration
9.1 Normal operation
SIMATIC Panel PC 877
Operating instructions, Release 07/2006, A5E00877780-01
9-3
9.1.2 Logging on to the operating system via the onscreen keyboard (OSK)
The logon dialog is displayed when you have assigned an administrator password.
Note
A screen keyboard appears for devices with touch screen panels. You can enter the
administrator password directly on the touch screen using the screen keyboard or using the
mouse. For additional information, refer to the Microsoft help on screen keyboards.