R.9.37
Date Code 20111215 Reference Manual SEL-421 Relay
ASCII Command Reference
Description of Commands
The port parameter n can refer to either of the ports involved in the session
you want to kill. When you issue the PORT KILL n command, the relay
responds,
Kill connection between ports m and n (Y/N)? Answer
Y <Enter> to terminate the connection. The relay sends a character sequence
to the remote relay (to make sure the remote device is left in a known state)
and responds,
Connection between ports m and n disconnected.
PULSE
Use the PULSE OUTnnn command to pulse any of the relay control outputs
for a specified time. This function aids you in relay testing and
commissioning. If the output is open, the PUL command momentarily closes
the output; if the output is closed, the PUL command momentarily opens the
output. See Test Commands on page U.6.5 for information on using the
PULSE OUTnnn command. The control outputs are OUTnnn, where nnn
represents the 100-series, 200-series, and 300-series addresses.
If the circuit breaker control enable jumper J18C is not in place, the relay
aborts the command and responds,
Aborted: the breaker jumper is not
installed
. See Jumpers on page U.2.18 for more information on relay
jumpers.
When you issue the PUL command and the breaker jumper is in place, the
relay responds,
Pulse contact OUTnnn for s seconds (Y/N)? If you
answer Y <Enter>, the relay asserts OUTnnn for the time you specify.
During the PUL operation, the Relay Word bit corresponding to the control
output you specified (OUTnnn) asserts; Relay Word bit TESTPUL asserts also
during any PUL command, so you can monitor pulse operation by
programming TESTPUL into event triggers and alarm outputs. See Section 3:
Analyzing Data in the Applications Handbook for more information on
pulsing relay outputs.
QUIT
Use the QUIT command to revert to Access Level 0 (exit relay control). See
Section 4: Basic Relay Operations in the User’s Guide for more information.
Access Level 0 is the lowest access level; the relay performs no password
check to descend to this level (or remain at this level).
In a Telnet session, QUIT terminates the connection (see Section 7: Direct
Network Communication in the Applications Handbook).
RTC
Use the RTC command to display a description of all data being received on
synchrophasor client channels. This report will list the analog quantity and
Relay Word bits the data gets stored in locally, matched up with a label
provided by the sending PMU. Use this information as aid to understanding
the local values.
Table 9.93 PUL OUTnnn Command
Command Description Access Level
PUL OUTnnn
a
a
Parameter nnn is a control output number.
Pulse output OUTnnn for 1 second. B, P, A, O, 2
PUL OUTnnn s
b
b
Parameter s is time in seconds, with a range of 1 through 30.
Pulse output OUTnnn for s seconds. B, P, A, O, 2
Table 9.94 QUIT Command
Command Description Access Level
QUIT Go to Access Level 0 (exit relay control). 0, 1, B, P, A, O, 2
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