7.51
Date Code 20170927 Instruction Manual SEL-751 Relay
Communications
Communications Protocols
STATUS Command (Relay Self-Test Status)
The STA command (see Table 7.44) displays the status report.
Refer to Section 11: Testing and Troubleshooting for self-test thresholds and
corrective actions, as well as hardware configuration conflict resolution.
Table 7.45 shows the status report definitions and message formats for each test.
Vector Shift Set
E78VS := N
Freq Settings
81D1TP := OFF 81D2TP := OFF 81D3TP := OFF
81D4TP := OFF 81D5TP := OFF 81D6TP := OFF
Rate of Frequency Set
E81R := N
Fast Rate of Frequency Set
E81RF := N
Demand Mtr Set
EDEM := THM DMTC := 5 PHDEMP := 5.00
GNDEMP := 1.00 3I2DEMP := 1.00
Power Elements
EPWR := N
Trip/Close Logic
TDURD := 0.5 CFD := 1.0
TR := ORED50T OR ORED51T OR ORED81T OR REMTRIP OR OC OR SV04T
REMTRIP := 0
ULTRIP := NOT ( 51P1P OR 51G1P OR 51N1P OR 52A )
52A := 0
CL := SV03T AND LT02 OR CC
ULCL := 0
Reclosing Control
E79 := N
=>>
Figure 7.30 SHOW Command Example (Continued)
Table 7.44 STATUS Command (Relay Self-Test Status)
Command Description Access Level
STA n Displays the relay self-test information n times
(n = 1–32767). Defaults to 1 if n is not specified.
1
STA S Displays the memory and execution utilization for
the SEL
OGIC control equations.
1
STA C or R Reboots the relay and clear self-test warning and
failure status results.
2
Table 7.45 STATUS Command Report and Definitions (Sheet 1 of 2)
STATUS Report
Designator
Definition Message Format
Serial Num Serial number Number
FID Firmware identifier string Text Data
CID Firmware checksum identifier Hex
PART NUM Part number Text Data
FPGA FPGA programming unsuccessful, or FPGA
failed
OK/FAIL
GPSB General purpose serial bus OK/FAIL
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