Sel 421 - Page 367

Date Code 20090715 SEL-421 Relay
SEL-421 Relay Command Summary
Command
a
,
b
Description
2ACCESS Go to Access Level 2 (complete relay monitoring and control)
AACCESS Go to Access Level A (automation control)
ACCESS Go to Access Level 1 (monitor relay)
BACCESS Go to Access Level B (monitor relay and control circuit breakers)
BNAME ASCII names of all relay status bits (Fast Meter)
BREAKER n Display the circuit breaker report and breaker history; preload and reset breaker monitor data (n = 1 is
BK1; n = 2 is BK2)
CASCII Generate the Compressed ASCII response configuration message
CBREAKER BREAKER command for the Compressed ASCII response
CEVENT EVENT command for the Compressed ASCII response
CHISTORY HISTORY command for the Compressed ASCII response
CLOSE n Close the circuit breaker (n = 1 is BK1; n = 2 is BK2)
COMM c Display relay-to-relay M
IRRORED BITS communications or remote synchrophasor data (c = A is channel
A; c = B is channel B; c = M is either enabled single channel; c = RTC for remote synchrophasors)
CONTROL nn Set, clear, or pulse an internal remote bit (nn is the remote bit number from 01–32)
COPY m n Copy settings between instances in the same class (m and n are instance numbers; for example: m = 1 is
Group 1; n = 2 is Group 2)
CSER SER command for the Compressed ASCII response
CSTATUS STATUS command for the Compressed ASCII response
CSUMMARY SUMMARY command for the Compressed ASCII response
DATE Display and set the date
DNAME X ASCII names of all relay digital I/O (Fast Meter)
DNP Access or modify serial port DNP3 settings (similar to SHOW D and SET D)
EVENT Display and acknowledge event reports
FILE Transfer data between the relay and external software
GROUP Display the active group number or select the active group
HELP Display available commands or command help at each access level
HISTORY View event summaries/histories; clear event data
ID Display the firmware id, user id, device code, part number, and configuration information
LOOPBACK Connect M
IRRORED BITS data from transmit to receive on the same port
MAP 1 Analyze the communications card database
METER Display metering data and internal relay operating variables
OACCESS Go to Access Level O (output control)
OPEN n Open the circuit breaker (n = 1 is BK1; n = 2 is BK2)
PACCESS Go to Access Level P (protection control)
PASSWORD Change relay passwords
PORT Connect to a remote relay via M
IRRORED BITS virtual terminal (for port number p = 1–3, and F), or the
Ethernet card (port p = 5)
PULSE OUTnnn Pulse a relay control output (OUTnnn is a control output number)
Courtesy of NationalSwitchgear.com