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E.30
SEL-787 Relay
Instruction Manual
Date Code 20081022
Modbus RTU Communications
Modbus Register Map
422 (R/W)
NEUT TOC CURVE
0
9
2
522
0 = U1
1 = U2
2 = U3
3 = U4
4 = U5
5 = C1
6 = C2
7 = C3
8 = C4
9 = C5
423 (R/W)
NEUT TOC TDIAL
5
1500
150
0.01
523
424 (R/W)
EM RESET DELAY
0
1
0
524
0 = N
1 = Y
425 (R/W)
CONST TIME ADDER
sec
0
100
0
0.01
525
426 (R/W)
MIN RESPONSE TIM
sec
0
100
0
0.01
526
427–431 (R)
Reserved
0
0
0
527–531
RTD Settings
432 (R/W)
RTD ENABLE
0
2
0
532
0 = NONE
1 = INT
2 = EXT
433 (R/W)
RTD1 LOCATION
0
2
0
533
0 = OFF
1 = AMB
2 = OTH
434 (R/W)
RTD1 TYPE
0
3
0
534
0 = PT100
1 = NI100
2 = NI120
3 = CU10
435 (R/W)
RTD1 TRIP LEVEL
degC
0
250
0
1
535
0 = Off
436 (R/W)
RTD1 WARN LEVEL
degC
0
250
0
1
536
0 = Off
437 (R/W)
RTD2 LOCATION
0
2
0
537
0 = OFF
1 = AMB
2 = OTH
438 (R/W)
RTD2 TYPE
0
3
0
538
0 = PT100
1 = NI100
2 = NI120
3 = CU10
439 (R/W)
RTD2 TRIP LEVEL
degC
0
250
0
1
539
0 = Off
440 (R/W)
RTD2 WARN LEVEL
degC
0
250
0
1
540
0 = Off
Table E.32
Modbus Register Map
a
(Sheet 9 of 38)
Modbus Register
Address
b
Name / Enums
Units
Min
Max
Def
Scale
Factor
DeviceNet
Parameter
Numbers
Summary of Contents for SEL-787
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