7-30
Serial Port Communications and Commands
Date Code 20020129
SEL-387E Instruction Manual
Refer to
Section 6: Setting the Relay
for setting worksheets. Refer to
Section 9: Event Reports
and Sequential Events Reporting
for more details on default settings and data retrieval.
Note: Make Sequential Events Recorder (SER) Settings With Care
The relay triggers a row in the Sequential Events Recorder (SER) event report for any change of
state in any one of the elements listed in the SER1, SER2, SER3, or SER4 trigger settings.
Nonvolatile memory is used to store the latest 512 rows of the SER event report so they can be
retained during power loss. The nonvolatile memory is rated for a finite number of “writes.”
Exceeding the limit can result in an EEPROM self-test failure. An average of 1 state change
every 3 minutes can be made for a 25-year relay service life.
SHO (Show Group 1 through 6 Settings)
Access Levels 1, B, 2
SHO displays the relay settings of the currently selected group. The entire syntax of the
SHO
command follows:
SHO n
Setting
A<ENTER>
n
specifies the setting group (1 through 6). The default is the active setting group.
Setting
specifies the setting name with which to begin. The default is the first setting.
If
Setting
=
A,
then hidden settings are shown in addition to the regular settings.
Control characters provide control over the scrolling of the data:
Temporarily Stop Scrolling:
<CTRL>Q
(hold down the Control key and press Q)
Restart Scrolling:
<CTRL>S
(hold down the Control key and press S)
Cancel Scrolling Completely:
<CTRL>X
(hold down the Control key and press X)
Settings cannot be entered or modified with this command. Change settings with the
SET
command from Access Level 2. Refer to individual elements in
Section 3: Differential,
Restricted Earth Fault, Overcurrent, Voltage, and Frequency Elements
and to
Section 6:
Setting the Relay
for information on settings.
SHO G (Show Global Settings)
Access Levels 1, B, 2
SHO G
displays the relay Global settings of the currently selected group. The Global settings
include Event Report parameters, frequency, phase rotation, date format, front-panel time-out,
the group switching time delay, dc battery monitor thresholds, breaker monitor settings, analog
input labels, SSn setting group variables, and definition of front-panel programmable LED and
Display Point variables. The syntax of the
SHO G
command follows:
SHO G
Setting
<ENTER>
Setting
specifies the setting name with which to begin. The default is the first setting.
