Siemens SENTRON PAC2200, Руководство по эксплуатации продукта, Страница: 62 / 130

Operation
5.4 Protection against manipulation
PAC2200
60
Equipment Manual, 12/2019, L1V30415167B-03
If no user-specific password has been assigned, the default password must be entered when
password protection is switched on. The currently valid password becomes visible on the
display when password protection is switched off. The password remains saved and
becomes effective again the next time password protection is switched on.
Note
Before switching on password protection, make sure that you and the group of authorized
users are
all in possession of the password.
If password protection is switched on, you need the password for all changes to the device
settings. You also require the password to call the "PASSWORD" dialog box
again in order to switch off access protection or to change the password.
Note
If you have forgotten the password, please contact Technical Support. You will receive a
new password from them.
5.4.3 Hardware write protection
The hardware 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.
To activate or deactivate the hardware write protection, the user is prompted to press the
SW button on the device. The request to do so appears on the display for 15 minutes.
If the SW button has not been pressed once 15 minutes have expired, the change is not
applied and the request message on the device display disappears.
5.4.4 IP filter (subnet firewall protection)
The IP filter, also called subnet firewall protection, is a configurable protection on the device.
If the protection is activated, write requests are only accepted if the user is in the same
subnet.