Date Code 20100129 Instruction Manual SEL-751A Relay
SEL-751A Relay Command Summary
The table below lists the front serial port ASCII commands associated with particular activities. The commands
are shown in uppercase letters, but they can also be entered using lowercase letters.
Serial Port Command Command Description
Access Level 0 Commands
ACC Go to Access Level 1.
ID Relay identification code.
QUI Go to Access Level 0.
Access Level 1 Commands
2AC Go to Access Level 2.
BRE Display breaker monitor data (trips, interrupted current, wear).
CEV n Show compressed event report number n, at 1/4-cycle resolution. Attach R for compressed raw report, at
1/16- cycle resolution.
COM A Return a summary report of the last 255 records in the communications buffer for M
IRRORED BITS
®
communications Channel A.
COM B Return a summary report of the last 255 records in the communications buffer for M
IRRORED BITS
communications Channel B.
COM C Clears all communications records. If both M
IRRORED BITS channels are enabled, omitting
the channel specifier (A or B) clears both channels.
COM C A Clears all communications records for Channel A.
COM C B Clears all communications records for Channel B.
COM L Appends a long report to the summary report of the last 255 records in the M
IRRORED BITS
communications buffer.
COM L A Appends a long report to the summary report of the last 255 records in the communications buffer for
M
IRRORED BITS communications Channel A.
COM L B Appends a long report to the summary report of the last 255 records in the communications buffer for
M
IRRORED BITS communications Channel B.
COM S Return a summary report of the last 255 records in the M
IRRORED BITS communications buffer.
COU n Show current state of device counters. n = repeat the report n times, with a 1/2 second delay between each
report.
DAT View the date.
DAT dd/mm/yyyy Enter date in DMY format.
DAT mm/dd/yyyy Enter date in MDY format if DATE_F setting is MDY.
DAT yyyy/mm/dd Enter date in YMD format if DATE_F setting is YMD.
ETH Show the Ethernet port status.
EVE n Show event report n with 4 samples per cycle. If n is omitted, most recent report is displayed.
EVE R n Show event report n with raw (unfiltered) 16 samples per cycle analog data and 4 samples per cycle digital
data.
FIL DIR Return a list of files.
FIL READ filename Transfer settings file filename from the relay to the PC.
FIL SHOW filename Filename 1 displays contents of the file filename.
GOO k Display transmit and receive GOOSE messaging information. Enter number k to scroll the GOOSE data k
times on the screen.
GRO Display active group setting.
HEL Display a short description of selected commands.
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