Schweitzer Engineering Laboratories SEL-751 - Page 744

E.30
SEL-751 Relay Instruction Manual Date Code 20170927
Modbus RTU Communications
Communications Protocol
438 (R) VBC RMS kV 0 65535 0 0.01 538
439 (R) VCA RMS kV 0 65535 0 0.01 539
440 (R) VS RMS kV 0 65535 0 0.01 540
441–449 (R) Reserved
c
541–549
Demand Data
450 (R) IA DEMAND A 0 65535 0 1 550
451 (R) IB DEMAND A 0 65535 0 1 551
452 (R) IC DEMAND A 0 65535 0 1 552
453 (R) IG DEMAND A 0 65535 0 1 553
454 (R) 3I2 DEMAND A 0 65535 0 1 554
455 (R) IA PEAK DEMAND A 0 65535 0 1 555
456 (R) IB PEAK DEMAND A 0 65535 0 1 556
457 (R) IC PEAK DEMAND A 0 65535 0 1 557
458 (R) IG PEAK DEMAND A 0 65535 0 1 558
459 (R) 3I2 PEAK DEMAND A 0 65535 0 1 559
460 (R) PEAKD RST TIM-ss 0 5999 0 0.01 560
461 (R) PEAKD RST TIM-mm 0 59 0 1 561
462 (R) PEAKD RST TIM-hh 0 23 0 1 562
463 (R) PEAKD RST DAT-dd 1 31 1 1 563
464 (R) PEAKD RST DAT-mm 1 12 1 1 564
465 (R) PEAKD RST DAT-yy 2000 9999 2000 1 565
466–469 (R) Reserved
c
566–569
Breaker Monitor
470 (R) RLY TRIPS 0 65535 0 1 570
471 (R) EXT TRIPS 0 65535 0 1 571
472 (R) IA RLY kA 0 65535 0 1 572
473 (R) IA EXT kA 0 65535 0 1 573
474 (R) IB RLY kA 0 65535 0 1 574
475 (R) IB EXT kA 0 65535 0 1 575
476 (R) IC RLY kA 0 65535 0 1 576
477 (R) IC EXT kA 0 65535 0 1 577
478 (R) A WEAR % 0 100 0 1 578
479 (R) B WEAR % 0 100 0 1 579
480 (R) C WEAR % 0 100 0 1 580
481 (R) BRKR RST TIM-ss 0 5999 0 1 581
482 (R) BRKR RST TIM-mm 0 59 0 1 582
483 (R) BRKR RST TIM-hh 0 23 0 1 583
484 (R) BRKR RST DAT-dd 1 31 1 1 584
485 (R) BRKR RST DAT-mm 1 12 1 1 585
486 (R) BRKR RST DAT-yy 2000 9999 2000 1 586
487–489 (R) Reserved
c
587–589
Analog Input Data
490 (R) AI301 - HI EU -32768 32767 0 0.001 590
491 (R) AI301 - LO EU -32768 32767 0 0.001 591
492 (R) AI302 - HI EU -32768 32767 0 0.001 592
Table E.34 Modbus Register Map
a
(Sheet 6 of 38)
Modbus Register
Address
b
Name/Enums Units Min Max Default
Scale
Fac to r
DeviceNet
Parameter
Numbers