Schweitzer Engineering Laboratories SEL-351A - CEVENT Command-SEL-351 A

E.7
Date Code 20080213 Instruction Manual SEL-351A Relay
Compressed ASCII Commands
CEVENT Command—SEL-351A
CEVENT Command—SEL-351A
Display event report in Compressed ASCII format by sending:
CEV [n Sx Ly L R C P] (parameters in [ ] are optional)
The relay responds to the CEV command with the nth event report as shown
below. Items in italics will be replaced with the actual relay data.
<STX>"FID","yyyy"<CR><LF>
"Relay FID string","yyyy"<CR><LF>
"MONTH","DAY","YEAR","HOUR","MIN","SEC","MSEC","yyyy"<CR><LF>
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,"yyyy"<CR><LF>
"FREQ","SAM/CYC_A","SAM/CYC_D","NUM_OF_CYC","EVENT",
"LOCATION","SHOT","TARGETS","IA","IB","IC","IN","IG","3I2","yyyy"<CR><LF>
xxxx,xxxx,xxxx,xxxx,"xxxx",xxxx,xxxx,"xxxx",xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,
"yyyy"<CR><LF>
"IA","IB","IC","IN","IG","VA(kV)","VB(kV)","VC(kV)","VS(kV)","VDC","FREQ","TRIG",
"Names of elements in the relay word separated by spaces ","yyyy"<CR><LF>
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,z,"HEX-ASCII Relay
Word","yyyy"<CR><LF>
"SETTINGS","yyyy"<CR><LF>
"Relay group, global, and logic settings as displayed with the showset command, and
relay part number (surrounded by quotes)","yyyy"<CR><LF><ETX>
where:
n event number (1 to 29) if LER = 15, (1 to 15) if LER = 30,
defaults to 1
Sxx samples per cycle (4 or 16); defaults to 4 If Sx parameter
is present, it overrides the L parameter.
Lyy cycles event report length (1 to LER) for filtered event
reports, (1 to LER+1) for raw event reports, defaults to
LER if not specified.
L 16 samples per cycle; overridden by the Sx parameter, if
present.
R specifies raw (unfiltered) data; defaults to 16 samples per
cycle unless overridden by the Sx parameter. Defaults to
LER + 1 cycles in length unless overridden with the Ly
parameter.
C specifies 16 samples per cycle (unless overridden by the
Sx parameter), LER cycle length (unless overridden by
the Ly parameter).
P Precise to synchrophasor-level accuracy for signal content
at nominal frequency. This option is available when
TSOK = logical 1.
where:
xxxx
are the data values corresponding to the line
labels.
yyyy
is the 4-byte hex ASCII representation of the
checksum.
FREQ
is the power system frequency at the trigger
instant.
SAM/CYC_A
is the number of analog data samples per cycle
(4 or 16).
SAM/CYC_D
is the number of digital data samples per cycle
(4 or 16).
NUM_OF_CYC
is the number of cycles of data in the event
report.
EVENT
is the event type.
LOCATION
is the fault location.
Courtesy of NationalSwitchgear.com