E.49
Date Code 20081022 Instruction Manual SEL-787 Relay
Modbus RTU Communications
Modbus Register Map
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
Commn Counters
1126 (R) NUM MSG RCVD 0 65535 0 1 1226
1127 (R) NUM OTHER MSG 0 65535 0 1 1227
1128 (R) INVALID ADDR 0 65535 0 1 1228
1129 (R) BAD CRC 0 65535 0 1 1229
1130 (R) UART ERROR 0 65535 0 1 1230
1131 (R) ILLEGAL FUNCTION 0 65535 0 1 1231
1132 (R) ILLEGAL REGISTER 0 65535 0 1 1232
1133 (R) ILLEGAL WRITE 0 65535 0 1 1233
1134 (R) BAD PKT FORMAT 0 65535 0 1 1234
1135 (R) BAD PKT LENGTH 0 65535 0 1 1235
1136–1141 (R) Reserved
c
0 0 0 1236–1241
Relay Elements
Only a few Relay Element rows have bit enumerations specific to that row. Other Relay Element rows have generic bit enumerations
as shown for row 10. See Relay Word SRS for element information in these rows.
1142 (R) ROW 0 0 255 0 1242
Bit 0 = TLED_06
Bit 1 = TLED_05
Bit 2 = TLED_04
Bit 3 = TLED_03
Bit 4 = TLED_02
Bit 5 = TLED_01
Bit 6 = TRIP_LED
Bit 7 = ENABLED
Table E.32 Modbus Register Map
a
(Sheet 28 of 38)
Modbus Register
Address
b
Name / Enums Units Min Max Def
Scale
Fa c tor
DeviceNet
Parameter
Numbers
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