Schweitzer Engineering Laboratories SEL-749M - Page 253

D.19
Date Code 20080918 Instruction Manual SEL-749M Relay
Modbus RTU Communications Protocol
Modbus Register Map
Undervoltage Settings
0085 (RW) UV TRIP ENABLE
0 = N
1 = Y
01 1 233
0086 (RW) UV TRIP LEVEL xVnm 60 100 0.01 0.01 234
0087 (RW) UV TRIP DELAY s 0 1200 0.1 0.1 235
0088 (RW) UV WARN ENABLE
0 = N
1 = Y
01 1 236
0089 (RW) UV WARN LEVEL xVnm 60 100 0.01 0.01 237
008A (RW) UV WARN DELAY s 0 1200 0.1 0.1 238
Overvoltage Settings
008B (RW) OV TRIP ENABLE
0 = N
1 = Y
01 1 239
008C (RW) OV TRIP LEVEL xVnm 100 120 0.01 0.01 240
008D (RW) OV TRIP DELAY s 0 1200 0.1 0.1 241
008E (RW) OV WARN ENABLE
0 = N
1 = Y
01 1 242
008F (RW) OV WARN LEVEL xVnm 100 120 0.01 0.01 243
0090 (RW) OV WARN DELAY s 0 1200 0.1 0.1 244
VAR Settings
0091 (RW) NEG VAR TRIP EN
0 = N
1 = Y
01 1 245
0092 (RW) NEG VAR TRIP LEV kVAR 1 25000 1 1 246
0093 (RW) POS VAR TRIP EN
0 = N
1 = Y
01 1 247
0094 (RW) POS VAR TRIP LEV kVAR 1 25000 1 1 248
0095 (RW) VAR TRIP DELAY s 0 240 1 1 249
0096 (RW) NEG VAR WARN EN
0 = N
1 = Y
01 1 250
0097 (RW) NEG VAR WARN LEV kVAR 1 25000 1 251
0098 (RW) POS VAR WARN EN
0 = N
1 = Y
01 1 252
0099 (RW) POS VAR WARN LEV kVAR 1 25000 1 1 253
009A (RW) VAR WARN DELAY s 0 240 1 1 254
Table D.23 Modbus Register Map
a
(Sheet 9 of 26)
Address
b
(Hex) Name/Enums
c
Units
Range
Scale
Fa c tor
DeviceNet
Parameter
Number
Low High Step
Courtesy of NationalSwitchgear.com