RTU500 series Remote Terminal Unit
Management
User Management
ABB AG - 1KGT 150 924
V000 1 | 2-9
•
Online parameter change
Disable the possibility to change single parameters online with the Web server.
•
Online configuration change
Disable the possibility to change the RTU configuration online with the web server.
See part (1) of the Web server screen shoot "Fig. 16: Menu tab security policies" for the password
policies user interface.
Password policies
The password policies define rules that a password must fulfill to get accepted by the RTU500 series.
To enable the password policies the check box "Enforce password policies" must be checked (see
figure in last chapter). Changes in the password policies are considered for new passwords only.
That means existing passwords are not checked against the policies and the passwords are still
valid and usable. To be sure that all passwords are compliant the passwords must be changed after
defining a password policy.
After enabling the password policies the control elements are enabled and changes could be done.
The following parameters are editable:
•
Minimum length of a password. The required length of a password could be set to 0 which
means no required length or to a value between 6 and 31. In case of 0 the password must be
at least 3 characters long (see implicit rules below).
•
Maximum lifetime of a password. This parameter defines the time after a password became
invalid and could not be used anymore. The time is configured in days with a range from 0 to
1000. The value 0 means that the password never became invalid.
•
Contains lower case characters. If this check box is set the passwords must contains at least
one lower case character.
•
Contains upper case characters. If this check box is set the passwords must contains at least
one upper case character.
•
Contains numeric characters. If this check box is set the passwords must contains at least one
numeric character '0' to '9'.
•
Contains special characters. If this check box is set the passwords must contains at least one
of the listed special character:
" [!£$%^&*@?<>+_]\"
Even when the password policies are not enabled there are certain rules for passwords. These are
minimal rules to ensure proper system functionality. These implicit rules are:
•
A password must be at least 3 characters long.
•
A password must not be more than 31 characters long.
•
A whitespace character is not allowed as part of the password.
•
For passwords the following characters are allowed:
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOBQRSTUVWXYZ"
"0123456789"
"[!£$%^&*@?<>+_]\"
Independent from the password policies there are as well implicit rules for user names. These rules
are:
•
A user name must be at least 3 characters long.
•
A user name must not be more than 31 characters long.
