
4 - 62
750/760 FEEDER MANAGEMENT RELAY – COMMUNICATIONS GUIDE
DATA FORMATS
CHAPTER 4: MODBUS MEMORY MAP
F77
2
ctd.
11
Line A-B Voltage
12
Line B-C Voltage
13
Line C-A Voltage
14
Average Line Voltage
15
Frequency
16
3
φ
Real Power (MW)
17
3
φ
Reactive Power (Mvar)
18
3
φ
Apparent Power (MVA)
19
3
φ
Power Factor
20
Last Phase A Current Demand
21
Last Phase B Current Demand
22
Last Phase C Current Demand
23
Last Real Power Demand
24
Last Reactive Power Demand
25
Last Apparent Power Demand
26
Analog Input
27
Last Fault Location
28
Positive Watthours
29
Negative Watthours
30
Positive Varhours
31
Negative Varhours
32
Ground Current
33
1
φ
A Real Power (MW)
34
1
φ
A Reactive Power (Mvar)
35
1
φ
A Apparent Power (MVA)
36
1
φ
A Power Factor
37
1
φ
B Real Power (MW)
38
1
φ
B Reactive Power (Mvar)
39
1
φ
B Apparent Power (MVA)
40
1
φ
B Power Factor
41
1
φ
C Real Power (MW)
42
1
φ
C Reactive Power (Mvar)
43
1
φ
C Apparent Power (MVA)
44
1
φ
C Power Factor
45
1
Synchro Voltage
46
1
Synchro Frequency
47
1
Synchro Voltage Angle
48
1
Sychro Voltage Difference
49
1
Sychro Angle Difference
50
1
Sychro Frequency Difference
51
1
Frequency Decay Rate
52
3
Polarizing Current
53
1
Phase A Current Angle
54
1
Phase B Current Angle
55
1
Phase C Current Angle
56
1
Neutral Current Angle
57
1
Ground Current Angle
58
3
Polarizing Current Angle
59
1
A-N Voltage Angle
60
1
B-N Voltage Angle
Table 4: Data Formats (Sheet 17 of 20)
Type
Value
Description