Siemens Multi Panel MP270 SIMATIC HMI, Equipment Manual

Page: 55 / 144

Operating Special Screen Objects
5-19
MP270 Equipment Manual
Release 01/99
5.6.1 Logging in and out of the MP270
Login
After calling a password protected function, the MP270 automatically requests the
entry of a password. It is not necessary to enter the password again to trigger
functions in this or a lower level.
Logout
In order to rule out operation by unauthorized personnel, a password level greater
than
0
should not remain active on the MP270 over too long a period of time. The
following options are available to explicitly reset passwords levels:
Configured logout time expires
If the MP270 is not used within the configured logout time (timeout), it
automatically resets the current password level to
0
.
Logout from MP270
If the configuration links the function
Logoff_user with an operating element, the
element can be used to reset the current password level to
0
on the MP270.