Schweitzer Engineering Laboratories SEL-2701, Instruction Manual

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3.11
Date Code 20020501
SEL-2701 Ethernet Processor Instruction Manual
Settings and Commands
SEL-2701 Commands
Access Levels
Access levels control whether you can perform different operations within
SEL products. For example, at Access Level 1, you can view settings. You
cannot change settings unless you are at Access Level 2. A complete list of
access levels for the SEL-2701 is shown in
Table 3.10 .
Each access level has a password. The SEL-2701 uses passwords set in the
host for the same access level. For example, if you have an SEL-2030 and
SEL-2701, and have set the SEL-2030 Access Level 2 password to SUB35L2,
then SUB35L2 is the password for Access Level 2 on your SEL-2701.
The SEL-2701 uses access levels and passwords in two ways. First, if you are
connected to the SEL-2701 user interface, the SEL-2701 limits command
access based on your access level. You are connected to the SEL-2701 user
interface if you are using a terminal or Telnet program and see one of the
prompts shown in
Table 3.10 . For example, if your SEL-2701 is installed in an
SEL-2030, you can Telnet to the SEL-2701 or make a transparent connection
from one of the SEL-2030 serial ports to the SEL-2701.
Second, the SEL-2701 uses access level names and passwords as user names
and passwords for protocols that require you to log in to establish a
connection. For example, if you are making an FTP connection to the
SEL-2701, you will be prompted for an FTP user name and password. In this
case, use host access levels and passwords to connect. Use the host access
level for the FTP user name and the corresponding password for the FTP
password. Access levels are listed with corresponding passwords in
Table 3.11 .
Connections that are closed manually by ending the network connection or by
using the SEL-2701
QUIT command are terminated. This means that to
reestablish the connection and return to the original access level, you must log
in using the access level commands and passwords.
When a connection with the SEL-2701 or the host “times out,” the connection
is closed and the access level is reduced to 0. There is a timeout setting
associated with connections to the SEL-2701 and connections to the host
through the SEL-2701. The timeout settings and their specific operation are
described in the host-specific sections.
2ACCESS
Use the 2ACCESS command to change to Access Level 2. If the current level
is not Access Level 1, the SEL-2701 responds with “Invalid access level.”
When you enter the
2AC command, the SEL-2701 prompts you to enter the
Access Level 2 password. If the password is Null or you enter the password
set in the host, the access level changes to Access Level 2. Passwords are case
Table 3.10 SEL-2701 Access Levels
Access Level Prompt Allowed SEL-2701 User-Interface Operations
0 # Log in to Access Level 1.
1 #> View data and status information.
2 #>> Perform all Access Level 1 functions plus advanced diag-
nostics and set date/time.
Table 3.11 Access Level User Names and Passwords
Access Level User Name Password
0 QUI None
1 ACC User-definable
2 2AC User-definable