Siemens MJ-XL Installation And Operation Manual page 33

4.6.3 Setting Up the MJ-X
Entering the System Key
To make changes to the security system itself, a "System
Key" must first be entered. The System Key is a special
password that allows the security administrator to change
passwords and to enable/disable Level 1 and Level 2 pro-
tection.
To enter the System Key, view the System Key xxxx data
item from the <PASSWORD> Menu; then press Change.
The display screen responds by flashing "n" in the left-
most position of the four-character password field. This
denotes the position in which a character is to be entered.
(The remaining character positions contain "n.") Use the
Ù and Ú keys to select the desired character. Then press
the Ø key to move the cursor to the next character to the
right, and so on, until all four characters of the password
have been entered. To complete the process, press the
Save key.
When a valid System Key has been entered, "Sys Key
Accepted" appears in the display screen. Re-definition of
the security system is then possible. Access to security
system re-definition continues until the definition session
is:
• Manually terminated by selection of End Session
Y(es) in the <PASSWORD> Menu.
• Automatically terminated by expiration of the Screen
timeout period.
Because of the security exposure possible during a secu-
rity system definition session, you should always use the
End Session facility when changes are complete to ensure
against unauthorized security
changes.
Changing Passwords
After entering the System Key (see above), scroll down to
view Password and Password Enable/Disable items.
To change a Level 1 password, view Level 1 PW: in the
<PASSWORD> Menu and use the Change, Scroll, and
Save keys to enter the new password. Passwords may
consist of any of the following characters: 0-9 and A-Z.
To change a Level 2 password, you must view the Menu
associated with that password from the <PASSWORD>
Menu. For example, to define a password for the <CON-
FIGURE> Menu view Config. PW;, then use the Change,
Scroll, and Save keys to enter the new password. You may
use the same Level 2 password for several Menus, or you
may use a different Level 2 password for each Menu.
Enabling/Disabling Password Checking
After entering the System Key (see above), scroll down to
view Password and Password Enable/Disable items.
In addition to defining passwords for a given level, you
must also enable that level before password checking
Siemens Power Transmission & Distribution, Inc.
4
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Security System
system re-definition
Setting Up the MJ-XL Control Panel
takes place. When password checking is enabled for a
given Level, entry of a valid password will be required
before you can change/reset any data item that is pro-
tected at that Level. Password checking is enabled for
each level separately. In other words, you can enable or
disable password protection for Level 1, for Level 2, or for
both Levels. If password checking for a given Level is dis-
abled, any data item at that Level can be changed or reset
without use of the password.
To activate password checking for Level 1, view the Level 1
parameter; then change the OFF to ON.
To activate password checking for Level 2, you must spec-
ify each Menu for which you wish security to be enabled.
For example, to enable Level 2 security for the <CONFIG-
URE> Menu, view CONFIGURE: from the <PASS-
WORD> Menu; then change the OFF to ON.
Changing the System Key
To change the System Key, (assuming you have not yet
entered the System Key):
1. Enter the present System Key. After all four charac-
ters have been selected, press Save. The words "Sys
Key Accepted" will appear in the display screen. After
a short period, the words "System Key" will be dis-
played.
2. Press the Change key to indicate that you wish to
make a change.
3. Enter the new key. After all four characters have been
selected, press Save. The words, "Re-enter xxxx"
will appear.
4. Verify correct entry by entering the new System Key
once again. After all four characters have been
selected, press Save.
If your first and second attempts do not match, you will
see the words, "Verify failure" and you will be returned to
step 2. When you have successfully entered the new Sys-
tem Key twice in succession, the display screen responds
with "Sys Key Changed."
4.6.4 Using the MJ-X
Password Security Activated
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MJ-X Security does not restrict data reading. However, if
password security is active, you must first enter the
proper password before you can change or reset pro-
tected data. If you attempt to change a password-pro-
tected item without first entering the proper password,
the display screen responds "PW NOT ENTERED" and
you must use the <PASSWORD> Menu to enter the
appropriate password.
Note that a Level 2 password includes Level 1 access priv-
ileges. Therefore, data items that are only Level 1 pro-
tected can be changed or reset after you enter either the
Level 1 password or a Level 2 password. Data items con-
tained in Menus that are password protected by Level 2
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Control Panel With
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