E.28
SEL-751A Relay
Instruction Manual
Date Code 20100129
Modbus RTU Communications
Modbus Register Map
Neutral Overcurrent
296 (R/W) NEUT OC L1 EN
0
1
0
396
0 = N
1 = Y
297 (R/W) NEUT OC TRIP L1
A
10
10000
200
0.01
397
298 (R/W) NEUT OC TRIP L1
mA
1
10000
100
0.1
398
299 (R/W) NEUT OC L1 DLY
sec
0
500
50
0.01
399
300 (R/W) NEUT OC L2 EN
0
1
0
400
0 = N
1 = Y
301 (R/W) NEUT OC TRIP L2
A
10
10000
200
0.01
401
302 (R/W) NEUT OC TRIP L2
mA
1
10000
100
0.1
402
303 (R/W) NEUT OC L2 DLY
sec
0
500
50
0.01
403
304 (R/W) NEUT OC L3 EN
0
1
0
404
0 = N
1 = Y
305 (R/W) NEUT OC TRIP L3
A
10
10000
200
0.01
405
306 (R/W) NEUT OC TRIP L3
mA
1
10000
100
0.1
406
307 (R/W) NEUT OC L3 DLY
sec
0
500
50
0.01
407
308 (R/W) NEUT OC L4 EN
0
1
0
408
0 = N
1 = Y
309 (R/W) NEUT OC TRIP L4
A
10
10000
200
0.01
409
310 (R/W) NEUT OC TRIP L4
mA
1
10000
100
0.1
410
311 (R/W) NEUT OC L4 DLY
sec
0
500
50
0.01
411
Residual Overcurrent
312 (R/W) RES OC L1 EN
0
1
0
412
0 = N
1 = Y
313 (R/W) RES OC TRIP L1
A
10
10000
200
0.01
413
314 (R/W) RES OC L1 DLY
sec
0
500
50
0.01
414
315 (R/W) RES OC L2 EN
0
1
0
415
0 = N
1 = Y
316 (R/W) RES OC TRIP L2
A
10
10000
200
0.01
416
317 (R/W) RES OC L2 DLY
sec
0
500
50
0.01
417
318 (R/W) RES OC L3 EN
0
1
0
418
0 = N
1 = Y
319 (R/W) RES OC TRIP L3
A
10
10000
200
0.01
419
320 (R/W) RES OC L3 DLY
sec
0
500
50
0.01
420
321 (R/W) RES OC L4 EN
0
1
0
421
0 = N
1 = Y
322 (R/W) RES OC TRIP L4
A
10
10000
200
0.01
422
323 (R/W) RES OC L4 DLY
sec
0
500
50
0.01
423
Negative-Sequence Overcurrent
324 (R/W) NSEQ OC L1 EN
0
1
0
424
0 = N
1 = Y
Table E.32
Modbus Register Map
a
(Sheet 3 of 56)
Modbus Register
Address
b
Name/Enums
Units
Min
Max
Default
Scale
Factor
DeviceNet
Parameter
Numbers
Содержание 751A
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