
CHAPTER 4: MODBUS MEMORY MAP
DATA FORMATS
750/760 FEEDER MANAGEMENT RELAY – COMMUNICATIONS GUIDE
4 - 53
F24
ctd.
22
User Input C
23
User Input D
24
User Input E
25
User Input F
26
User Input G
27
User Input H
30
Block 1 TRIP
31
Block 2 CLOSE
32
Block Reset
33
Block Undervolt 1
34
Block Undervolt 2
35
Block Undervolt 3
36
Block Undervolt 4
37
Block Underfreq 1
38
Block Underfreq 2
39
Bypass Synchrocheck
40
Block Trip Count
41
Block Negative Sequence Overvoltage
42
Block Restoration
43
1
Block Freq Decay
50
Block All Overcurrent
51
Block Phase Overcurrent
52
Block Ground Overcurrent
53
Block Neutral Overcurrent
54
2
Block Phase Time Overcurrent 1
55
2
Block Phase Instantaneous Overcurrent 1
56
2
Block Phase Instantaneous Overcurrent 2
57
2
Block Ground Time Overcurrent
58
2
Block Ground Instantaneous Overcurrent
59
2
Block Neutral Time Overcurrent 2
60
2
Block Neutral Time Overcurrent 1
61
2
Block Neutral Instantaneous Overcurrent 1
62
2
Block Neutral Instantaneous Overcurrent 2
63
Block Negative Sequence Instantaneous Overcurrent
64
Block Negative Sequence Time Overcurrent
65
1
Block Phase Time Overcurrent 2
70
Selected To Trip
71
Undervoltage On Other Source
72
Incomer 1 Closed
73
Incomer 2 Closed
74
BusTie Connected
75
Bus Tie Closed
76
Block Transfer
77
Transformer Lockout
78
Source Trip
79
Close From Incomer 1
80
Close From Incomer 2
90
Initiate Reclosure
91
Cancel Reclosure
92
Block Reclosure
100
Trigger Trace Memory
Table 4: Data Formats (Sheet 8 of 20)
Type
Value
Description
1 2 3 4 5 6 7 8 9 10 11 12 13
For explanation of footnotes, see notes of end of Table.