CHAPTER 4: MODBUS MEMORY MAP DATA FORMATS
750/760 FEEDER MANAGEMENT RELAY – COMMUNICATIONS GUIDE 4 - 51
F24
ctd.
4
2
Ground Time Overcurrent
5
2
Ground Instantaneous Overcurrent
6
2
Neutral Time OC 1
7
2
Neutral Time OC 2
8
2
Neutral Instantaneous Overcurrent 1
9
2
Neutral Instantaneous Overcurrent 2
10
2
Phase Directional is Reverse
11
2
Neutral Directional is Reverse
12
2
Manual Close Feature Blocking
13 Cold Load Pickup Feature Blocking
14 Bus Undervoltage 1
15 Bus Undervoltage 2
16 Line Undervoltage 3
17 Line Undervoltage 4
18 Overvoltage 1
19 Overvoltage 2
20 Underfrequency 1
21 Underfrequency 2
22 Phase Current Level
23
1
Neutral Current Level
24 Power Factor 1
25 Power Factor 2
26 Out Of Synchronization
27 Current Demand
28 Real Power Demand
29 Reactive Power Demand
30 Apparent Power Demand
31 Analog Input Threshold 1
32 Analog Input Threshold 2
33 Analog Input Rate of Change 1
34 Analog Input Rate of Change 2
35 Overfrequency
36 Trip Counter
37 Arcing Current
38 VT Failure
39 Breaker Failure
40 Breaker Operation
41 Trip Coil Monitor
42 Close Coil Monitor
43 User Input A
44 User Input B
45 User Input C
46 User Input D
47 User Input E
48 User Input F
49 User Input G
50 User Input H
51 Negative Sequence Instantaneous Overcurrent
52 Negative Sequence Time Overcurrent
53 Negative Sequence Overvoltage
54 Undervoltage Restoration
Table 4: Data Formats (Sheet 6 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.