Sel SEL-421 - Command Summary; Control Characters; Access Levels; Ethernet Card Access Levels

R.4.11
Date Code 20111215 Reference Manual SEL-421 Relay
Communications Interfaces
Communications Card
Command Summary
Tab le 4.10 summarizes the Ethernet card commands. Subsequent subsections
provide full descriptions of each command in alphabetical order.
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-421 is shown in Table 4.11.
Each access level has a password. The Ethernet card uses passwords set in the
host for the same access level. For example, if you have an SEL-2032 and
Table 4.9 Control Characters
Control Characters Key Commands Results
XON CTRL + Q Restart paused transmission and enable
subsequent transmissions.
XOFF CTRL + S Pause current transmission and block any
subsequent transmissions.
CAN CTRL + X Cancel current transmission or command and
return to cursor.
Table 4.10 Ethernet Card Command Summary
Command Description Access Level
2ACCESS Go to Access Level 2. 1
ACCESS Go to Access Level 1. 0 or 2
DATE View or change date. 1
a
or 2
a
Limited functions at this access level. See command description below for details.
DNPMAP Display data map(s) accessible to a DNP
LAN/WAN master
1 or 2
GOOSE Display GOOSE message multicast information
and status for transmit and receive GOOSE
messages.
1 or 2
HELP Display available commands or command help. Any
ID View internal identification parameters for the
Ethernet card.
1 or 2
MEMORY Display RAM statistics for the Ethernet card. 1 or 2
PING Ping another node on the network. 2
QUIT Go to Access Level 0. Any
STATUS Display self-test status. 1 or 2
TIME View or change internal clock. 1
a
or 2
Table 4.11 Ethernet Card Access Levels
Access Level Prompt Allowed Ethernet Card 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.