E.47
Date Code 20150130 Instruction Manual SEL-787 Relay
Modbus RTU Communications
Modbus Register Map
1103 (R) EVENT VCA/VCN V 0 65535 0 1 1203
1104 (R) EVENT VG V 0 65535 0 1 1204
1105 (R) EVENT DELTA/WYE 0 1 0 1205
0 = DELTA
1=WYE
1106 (R) EVENT FREQ Hz 2000 7000 6000 0.01 1206
1107 (R) EVNT MAX AMB RTD degC -32768 32767 0 1 1207
1108 (R) EVNT MAX OTH RTD degC -32768 32767 0 1 1208
1109–1116 (R) Reserved
c
0 0 0 1209–1216
Trip/ War n Data
The Trip and Warn Status registers bits are “sticky” (once set they are not cleared until the target reset is issued from any interface)
when a trip event occurs.
1117 (R) TRIP STATUS LO 0 65535 0 1217
Bit 0 = WDG1 50 PHASE
Bit 1 = WDG1 50 GROUND
Bit 2 = WDG1 50 NEGSEQ
Bit 3 = WDG1 51 PHASE
Bit 4 = WDG1 51 GROUND
Bit 5 = WDG1 51 NEGSEQ
Bit 6 = WDG2 50 PHASE
Bit 7 = WDG2 50 GROUND
Bit 8 = WDG2 50 NEGSEQ
Bit 9 = WDG2 51 PHASE
Bit 10 = WDG2 51 GROUND
Bit 11 = WDG2 51 NEGSEQ
Bit 12 = NEUTRAL 50
Bit 13 = NEUTRAL 51
Bit 14 = RESTR DIFF 87R
Bit 15 = UNRESTR DIFF 87U
1118 (R) TRIP STATUS HI 0 65535 0 1218
Bit 0 = UNDERVOLT 27P
Bit 1 = OVERVOLT 59P
Bit 2 = NSEQVOLT 59Q
Bit 3 = POWER ELEMENTS
Bit 4 = FREQUENCY 81
Bit 5 = VOLTS/HERTZ
Bit 6 = RESTRCTD EARTH
Bit 7 = RTD TRIP
Bit 8 = BREAKER FAIL
Bit 9 = REMOTE TRIP
Bit 10–Bit 14 = RESERVED
Bit 15 = TRIP
1119 (R) WARN STATUS LO 0 65535 0 1219
Bit 0 = THR FAULT ALARM
Bit 1 = DEMAND ALARM
Bit 2 = RTD FAULT
Bit 3 = CONFIG FAULT
Bit 4 = COMM FAULT
Bit 5 = COMM IDLE
Bit 6 = COMM LOSS
Bit 7 = DIFF ALARM 87A
Bit 8 = 5TH HARMONIC ALM
Bit 9 = RTD ALARM
Bit 10 = LOSS OF POTNTIAL
Bit 11 = AI HI/LO ALARM
Bit 12 = RESERVED
Bit 13 = HALARM
Bit 14 = SALARM
Bit 15 = WARNING
1120 (R) WARN STATUS HI 0 65535 0 1220
Bit 0–Bit 15 = RESERVED
1121–1125 (R) Reserved
c
0 0 0 1221–1225
Table E.34 Modbus Register Map
a
(Sheet 25 of 36)
Modbus Register
Address
b
Name / Enums Units Min Max Def
Scale
Fac tor
DeviceNet
Parameter
Numbers
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