10-24
Line Current Differential Communications
Date Code 20010625
and Serial Port Communications and Commands
SEL-311L Instruction Manual
The serial port commands at the different access levels offer varying levels of control:
•
The Access Level 1 commands primarily allow the user to look at information only
(settings, metering, etc.), not change it.
•
The Access Level B commands primarily allow the user to operate output contacts or
change the active setting group.
•
The Access Level 2 commands primarily allow the user to change relay settings.
Again, a higher access level can access the serial port commands in a lower access level. The
commands are shown in upper-case letters, but they can also be entered with lower-case letters.
Table 10.6: Serial Port Command Summary
Access
Level
Prompt
Serial Port
Command
Command Description
Corresponding
Front-Panel
Pushbutton
0
=
ACC
Go to Access Level 1
0
=
CAS
Compressed ASCII configuration
data
1
=>
2AC
Go to Access Level 2
1
=>
BAC
Go to Access Level B
1
=>
BRE
Breaker monitor data
OTHER
1
=>
CEV
Compressed event report
1 =>
CHIS Compressed
history
1 =>
COM M
IRRORED
B
ITS
communications
statistics
1
=>
CST
Compressed status report
1
=>
CSU
Compressed event summary
1 =>
DAT View/change
date
OTHER
1
=>
DNP
Set/Show DNP map
1 =>
EVE Event
reports
1
=>
GRO
Display active setting group number
GROUP
1 =>
HIS Event
summaries/histories
EVENTS
1
=>
IRI
Synchronize to IRIG-B
1
=>
QUI
Quit to Access Level 0
1
=>
MET
Differential metering data
METER
1
=>
MET B
Backup metering data
METER
1
=>
SER
Sequential Events Recorder
1 =>
SHO Show/view
settings
SET
1
=>
STA
Relay self-test status
STATUS
1
=>
SUM
Display event summary
EVENTS
1
=>
TAR
Display relay element status
OTHER
1 =>
TIM View/change
time
OTHER
1
=>
TRI
Trigger an event report
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