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E.79
Date Code 20100129
Instruction Manual
SEL-751A Relay
Modbus RTU Communications
Modbus Register Map
300FH (R)
NEGATIVE SEQ TOC
371
377
371
3010H (R)
NEUTRAL TOC
378
393
378
3011H (R)
RESIDUAL TOC
394
410
394
3012H (R)
RTD SETTINGS
411
461
411
3013H (R)
UNDERVOLTAGE SET
462
473
462
3014H (R)
OVERVOLTAGE SET
474
485
474
3015H (R)
RECLOSING CONTROL
486
501
486
3016H (R)
POWER FACTOR SET
502
512
502
3017H (R)
FREQ SETTINGS
513
524
513
3018H (R)
SYNC CHECK SET
525
532
525
3019H (R)
TRIP/CLOSE LOGIC
533
541
533
301AH (R)
SEL
OGIC
ENABLES
542
550
542
301BH (R)
OUTPUT CONTACTS
551
570
551
301CH (R)
EVENT REPORT SET
571
580
571
301DH (R)
FRONT PANEL SET
581
590
581
301EH (R)
RESET SETTINGS
591
601
591
301FH (R)
DATE/TIME SET
602
609
602
3020H (R)
DEVICE STATUS
610
649
610
3021H (R)
CURRENT DATA
650
663
650
3022H (R)
EXTRA VOLTAGE DATA
664
666
664
3023H (R)
VOLTAGE DATA
667
684
667
3024H (R)
POWER DATA
685
689
685
3025H (R)
ENERGY DATA
690
711
690
3026H (R)
RTD DATA
712
728
712
3027H (R)
LIGHT MTR DATA
729
738
729
3028H (R)
RMS DATA
739
749
739
3029H (R)
MAX/MIN MTR DATA
750
917
750
302AH (R)
MAX/MIN RTD DATA
918
1085
918
302BH (R)
MAX/MIN AI3 DATA
1086
1213
1086
302CH (R)
MAX/MIN AI4 DATA
1214
1341
1214
302DH (R)
MAX/MIN AI5 DATA
1342
1469
1342
302EH (R)
MAX/MIN RST DATA
1470
1480
1470
302FH (R)
PER PHASE POWER DATA
1481
1492
1481
3030H (R)
ANA INP DATA
1493
1546
1493
3031H (R)
MATH VARIABLES
1547
1610
1547
3032H (R)
DEVICE COUNTERS
1611
1647
1611
3033H (R)
BREAKER MONITOR
1648
1666
1648
3034H (R)
VS MAXMIN DATA
1667
1688
1667
3035H (R)
DEMAND DATA
1689
1718
1689
3036H (R)
RESERVED AREA5
1719
1745
1719
3037H (R)
HISTORICAL DATA
1746
1779
1746
3038H (R)
TRIP/WARN DATA
1780
1788
1780
3039H (R)
COMMN COUNTERS
1789
1804
1789
303AH (R)
RELAY ELEMENTS
1805
1947
1805
303BH (R)
EXTRA SETTINGS
1948
2070
1948
Table E.32
Modbus Register Map
a
(Sheet 54 of 56)
Modbus Register
Address
b
Name/Enums
Units
Min
Max
Default
Scale
Factor
DeviceNet
Parameter
Numbers
Summary of Contents for 751A
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