Schweitzer Engineering Laboratories SEL-421-4, Instruction Manual

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14.32
SEL-400 Series Relays Instruction Manual Date Code 20171006
ASCII Command Reference
Command Description
HELP
The HELP command gives a list of commands available at the present access
level. You can also get a description of any particular command; type HELP fol-
lowed by the name of the command for help on each command.
HISTORY
The HISTORY command displays a quick synopsis of the last 100 events that
the relay has captured. The rows in the HISTORY report typically contains the
event serial number, date, time, location, maximum current, active group, and tar-
gets. (The specific content depends on the relay.) See
Section 9: Reporting and
Section 7: Metering, Monitoring and Reporting in the product-specific instruc-
tion manual for more information on history reports.
HIS
Use the HIS command to list one-line descriptions of relay events. You can list
event histories by number or by date.
HIS C and HIS R
The HIS C and HIS R commands clear/reset the history data and corresponding
high-resolution/event report data on the present port. Options C and R are identical.
The relay prompts you with
Are you sure (Y/N)?
when you issue the HIS C
and HIS R commands. If you answer Y <Enter> , the relay clears the present port
history data.
Table 14.74 HELP Command
Command Description Access Level
HELP Display a list of each command available at the present
access level with a one-line description. 1, B, P, A, O, 2
HELP command Display information on the command command . 1, B, P, A, O, 2
Table 14.75 HIS Command
Command Description Access Level
HIS Return event histories with the oldest at the bottom of
the list and the most recent at the top of the list. 1, B, P, A, O, 2
HIS k
a
a
Parameter k indicates an event number.
Return the k most recent event histories with the oldest at the
bottom of the list and the most recent at the top of the list.
1, B, P, A, O, 2
HIS date1
b
b
Enter date1 and date2 in the order selected by the Global setting DATE_F.
Return the event histories on date date1 . 1, B, P, A, O, 2
HIS date1 date2
b
Return the event histories from date1 to date2 , with
date1 at the bottom of the list and date2 at the top of the list.
1, B, P, A, O, 2
Table 14.76 HIS C and HIS R Commands
Command Description Access Level
HIS C Clear/reset event data on the present port only. 1, B, P, A, O, 2
HIS R Clear/reset event data on the present port only. 1, B, P, A, O, 2