Schweitzer Engineering Laboratories SEL-751 - Page 742

E.28
SEL-751 Relay Instruction Manual Date Code 20170927
Modbus RTU Communications
Communications Protocol
348 (R) VCN kV 0 65535 0 0.01 448
349 (R) VCN ANGLE deg -1800 1800 0 0.1 449
350 (R) VG kV 0 65535 0 0.01 450
351 (R) VG ANGLE deg -1800 1800 0 0.1 451
352 (R) AVERAGE PHASE
e
kV 0 65535 0 0.01 452
353 (R) NEG-SEQ VOLT 3V2 kV 0 65535 0 0.01 453
354 (R) VOLTAGE IMBAL % 0 1000 0 0.1 454
355 (R) VSN kV 0 65535 0 0.01 455
356 (R) VSN ANGLE deg -1800 1800 0 0.1 456
357 (R) VDC V 0 65535 0 0.1 457
358–359 (R) Reserved
c
458–459
Power Data
360 (R) A REAL POWER kW -32768 32767 0 1 460
361 (R) A REACTIVE POWER kVAR -32768 32767 0 1 461
362 (R) A APPARENT POWER kVA -32768 32767 0 1 462
363 (R) A POWER FACTOR -100 100 0 0.01 463
364 (R) B REAL POWER kW -32768 32767 0 1 464
365 (R) B REACTIVE POWER kVAR -32768 32767 0 1 465
366 (R) B APPARENT POWER kVA -32768 32767 0 1 466
367 (R) B POWER FACTOR -100 100 0 0.01 467
368 (R) C REAL POWER kW -32768 32767 0 1 468
369 (R) C REACTIVE POWER kVAR -32768 32767 0 1 469
370 (R) C APPARENT POWER kVA -32768 32767 0 1 470
371 (R) C POWER FACTOR -100 100 0 0.01 471
372 (R) REAL POWER kW -32768 32767 0 1 472
373 (R) REACTIVE POWER kVAR -32768 32767 0 1 473
374 (R) APPARENT POWER kVA -32768 32767 0 1 474
375 (R) POWER FACTOR -100 100 0 0.01 475
376 (R) FREQUENCY Hz 2000 7000 6000 0.01 476
377 (R) SYNC FREQUENCY Hz 2000 7000 6000 0.01 477
378–379 (R) Reserved
c
478–479
Energy Data
380 (R) MWH3PI HI MWhr 0 65535 0 0.001 480
381 (R) MWH3PI LO MWhr 0 65535 0 0.001 481
382 (R) MWH3PO HI MWhr 0 65535 0 0.001 482
383 (R) MWH3PO LO MWhr 0 65535 0 0.001 483
384 (R) MVARH3PI HI MVRh 0 65535 0 0.001 484
385 (R) MVARH3PI LO MVRh 0 65535 0 0.001 485
386 (R) MVARH3PO HI MVRh 0 65535 0 0.001 486
387 (R) MVARH3PO LO MVRh 0 65535 0 0.001 487
388 (R) MVAH3P HI MVAh 0 65535 0 0.001 488
389 (R) MVAH3P LO MVAh 0 65535 0 0.001 489
390 (R) LAST RST TIME-ss 0 5999 0 0.01 490
391 (R) LAST RST TIME-mm 0 59 0 1 491
392 (R) LAST RST TIME-hh 0 23 0 1 492
Table E.34 Modbus Register Map
a
(Sheet 4 of 38)
Modbus Register
Address
b
Name/Enums Units Min Max Default
Scale
Fac to r
DeviceNet
Parameter
Numbers