7.21
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Serial Port Communications and Commands
SEL ASCII Protocol Details
=>>INI <Enter>
I/O BOARD INPUTS OUTPUTS
Main 6 7
1 No Board Connected
2 No Board Connected
=>>
IRI (IRIG-B Synchronization)
Access Levels 1, B, 2
The IRIG command forces the relay to read the demodulated IRIG-B time-
code input at the time of the command.
If the relay reads the time code successfully, it updates the internal clock/
calendar time and date to the time-code reading. The relay then transmits a
message with relay settings RID and TID, and the date and time.
=>IRI <Enter>
XFMR 1 Date: 02/01/96 Time: 01:45:40.762
STATION A
=>
If no IRIG-B signal is present or the code cannot be read successfully, the
relay sends the error message
IRIG-B DATA ERROR.
MET (Metering Report)
Access Levels 1, B, 2
The METER command displays currents, demand currents, peak demand
currents, or differential data, depending on the command statement. There are
several choices for the MET command, listed briefly below. Refer to
Section 5: Metering and Monitoring for a complete description of the
metering reports.
Use the MET XXX n command, where n is a positive integer, to repeat the
MET XXX report n times. For example, to display a series of eight meter
readings, type MET 8 <Enter>.
If the Analog Input Label settings (IAW1, etc.) have been renamed, these will
appear in the report as set.
NOTE: Normally, it is not necessary
to synchronize using this command
because the relay automatically
synchronizes approximately once a
minute. The IRIG command is provided
to prevent delays during testing and
installation checkout.
Ta b l e 7.4 M E T Comm a n d Ch o i c e s
MET
Displays winding current metering data, in primary amperes
MET D
Displays winding demand ammeter data, in primary amperes
MET DIF
Displays differential metering data, in multiples of tap
MET H
Displays harmonic spectrum of currents (see MET H below)
MET P
Displays peak demand ammeter data, in primary amperes
MET RD
n
Resets demand ammeter for Winding n (n = 1, 2, 3, 4, A)
MET RP
n
Resets peak demand ammeter values
for Winding n (n = 1, 2, 3, 4, A)
MET SEC
Displays winding current metering data,
with magnitude and phase angle, in secondary amperes
MET T
Displays the temperature values of up to 12 RTDs per port
(maximum of
24 RTDs) (SEL-387-5 and SEL-387-6 relays only)
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