Siemens SENTRON PAC4220 - Page 92

becomes visible on the display when protection against unauthorized operation is switched
o󹪜. The passw
ord remains saved and becomes e󹪜ective again the next time protection
against unauthorized operation is switched on.
Note
Befor
e you switch on protection against unauthorized operation, make sure that you and the
group of authorized users are all in possession of the password. If password protection is
switched on, the password is mandatory for all changes to the device settings.
You also require the password to call the "PASSWORD" dialog box again in order to switch o󹪜
access protection or to change the password.
Note
If y
ou ha
ve forgotten the password, please contact Technical Support. You will receive a new
password from them.
Hardware write protection
The har
dware write protection prevents write access to the device, both via the communication
interface and on the display.
In order to gain write access, the hardware write protection must be deactivated directly on
the device.
The hardware write protection cannot be deactivated via a communication interface.
The hardware write protection can be activated on the device and parameterized in detail in
the "Advanced" submenu of the "Settings" menu. A list of the various setting options can be
found in chapter Write protection (Page86).
Note
Wr
ite protection slider
The user must adjust the position of the write protection slider on the rear panel of the device
in order to activate or deactivate the hardware write protection function (see chapter Write
protection (Page86)).
Parameterizing
7.2Protection against tampering
PAC4220
90 Equipment Manual, L1V30827278B-01