7.23
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Serial Port Communications and Commands
SEL ASCII Protocol Details
The PASsword command allows you to change existing Level 1, B, and 2
passwords at Access Level 2 and allows you to change the Level C password
from Level C. To change passwords, enter PAS x, where x is the access level
whose password is being changed. The relay will prompt for the old password,
new password, and a confirmation of the new password.
To change the password for Access Level 1, enter the following:
=>>PAS 1 <Enter>
Old Password: *********
New Password: ******
Confirm New Password: ******
Password Changed
=>>
The new password will not echo on the screen, and passwords cannot be
viewed from the device. Record the new password in a safe place for future
reference.
If the passwords are lost or you wish to operate the relay without password
protection, put the main board Password jumper in place (Password jumper =
ON). Refer to Password and Breaker Jumpers on page 2.15 for Password
jumper information. With the Password jumper in place, issue the PAS x
command at Access Level 2. The relay will prompt for a new password and a
confirmation of the new password.
Passwords may include up to 12 characters. See Table 7 .5 for valid characters.
Upper- and lowercase letters are treated as different characters. Strong
passwords consist of 12 characters, with at least one special character or digit
and mixed-case sensitivity, but do not form a name, date, acronym, or word.
Passwords formed in this manner are less susceptible to password guessing
and automated attacks. Examples of valid, distinct strong passwords include:
➤ Ot3579A24.68
➤ Ih2d&s4u-Iwg
➤ .387e.Nt9g-t
The relay shall issue a weak password warning if the new password does not
include at least one special character, number, lowercase letter, and uppercase
letter.
=>>PAS 1 <Enter>
Old Password: *********
New Password: ******
Confirm New Password: ******
Password Changed
=>>
CAUTION: This password can be strengthened. Strong passwords do not include a name,
date, acronym, or word. They consist of the maximum allowable characters, with
Table 7.5 Valid Password Characters
Alpha
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
Numeric
0123456789
Special
! " # $ % & ' ( ) * , - . / : ; < = > ? @ [ \ ] ^ _ ` { | } ~
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