Schweitzer Engineering Laboratories SEL-749M - Page 246

D.12
SEL-749M Relay Instruction Manual Date Code 20080918
Modbus RTU Communications Protocol
Modbus Register Map
0015 (RW) MOTOR LRA–2nd xFLA 25 120 0.1 0.1 121
0016 (RW) MOTOR LRT–2nd s 10 6000 0.1 0.1 122
0017 (RW) ACCEL FACT–2nd 10 150 0.01 0.01 123
0018 RUN ST TC–2nd min 0 2000 1 1 124
0019 THERM OL CURVE1 1 45 1 1 125
001A (RW) THERM OL CURVE2 1 45 1 1 126
001B (RW) OL WARN ENABLE
0 = N
1 = Y
01 1 127
001C (RW) OL WARN LEVEL %TCU 50 99 1 1 128
001D (RW) START INH. LEVEL
0=Off
%TCU 0 99 1 1 129
001E (RW) STOP COOL TIME min 1 6000 1 1 130
001F (RW) OL RTD BIASING?
0 = N
1 = Y
01 1 131
Phase Overcurrent
0020 (RW) PH OC TRIP ENABL
0 = N
1 = Y
01 1 132
0021 (RW) PH OC TRIP LVL xFLA 10 2000 0.01 0.01 133
0022 (RW) PH OC TRIP DLAY s 0 500 0.01 0.01 134
0023 (RW) PH OC WARN ENABL
0 = N
1 = Y
01 1 135
0024 (RW) PH OC WARN LVL xFLA 10 2000 0.01 0.01 136
0025 (RW) PH OC WARN DLAY s 0 500 0.01 0.01 137
Neutral Overcurrent
0026 (RW) NEUT OC TRIP EN
0 = N
1 = Y
01 1 138
0027 (RW) NEUT OC TRIP LVL A 1 2500 0.01 0.01 139
0028 (RW) NEU OC TRIP DLAY s 0 500 0.01 0.01 140
0029 (RW) NEUT OC WARN EN
0 = N
1 = Y
01 1 141
002A (RW) NEUT OC WARN LVL A 1 2500 0.01 0.01 142
002B (RW) NEU OC WARN DLAY s 0 1200 0.1 0.1 143
Residual Overcurrent
002C (RW) RES OC TRIP EN
0 = N
1 = Y
01 1 144
002D (RW) RES OC TRIP LVL xFLA 10 100 0.01 0.01 145
Table D.23 Modbus Register Map
a
(Sheet 2 of 26)
Address
b
(Hex) Name/Enums
c
Units
Range
Scale
Fa c tor
DeviceNet
Parameter
Number
Low High Step
Courtesy of NationalSwitchgear.com