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8.3 MODBUS MEMORY MAP
Table 8–7: 745 DATA FORMATS (Sheet 17 of 35)
FORMAT
APPLICABLE BITS
CODE
0001 1110
0001 1111
0010 0000
0010 0001
0010 0010
0010 0011
0010 0100
0010 0101
0010 0110
0010 0111
0010 1000
0010 1001
0010 1010
0010 1011
0010 1100
0010 1101
0010 1110
0010 1111
0011 0000
0011 0001
0011 0010
0011 0011
0011 0100
0011 0101
0011 0110
0011 0111
0011 1000
0011 1001
0011 1010
8
0011 1011
0011 1100
0011 1101
0011 1110
0011 1111
0100 0000
0100 0001
0100 0010
0100 0011
0100 0100
0100 0101
8-82
DEFINITION
30 = Winding 1 Ground Inst O/C 2
31 = Winding 2 Ground Inst O/C 2
32 = Winding 3 Ground Inst O/C 2
33=Winding 1 Restricted Ground Fault
34=Winding 2 Restricted Ground Fault
35=Winding 3 Restricted Ground Fault
36=Winding 1 Restricted Ground Trend
37=Winding 2 Restricted Ground Trend
38=Winding 3 Restricted Ground Trend
39 = Winding 1 Neg. Seq. Time O/C
40 = Winding 2 Neg. Seq. Time O/C
41 = Winding 3 Neg. Seq. Time O/C
42 = Winding 1 Neg. Seq. Inst O/C
43 = Winding 2 Neg. Seq. Inst O/C
44 = Winding 3 Neg. Seq. Inst O/C
45 = Underfrequency 1
46 = Underfrequency 2
47 = Frequency Decay Rate 1
48 = Frequency Decay Rate 2
49 = Frequency Decay Rate 3
50 = Frequency Decay Rate 4
51 = Overfrequency
52 = 5th Harmonic Level
53 = Volts-Per-Hertz 1
54 = Volts-Per-Hertz 2
55 = Winding 1 THD Level
56 = Winding 2 THD Level
57 = Winding 3 THD Level
58 = Winding 1 Harmonic Derating
59 = Winding 2 Harmonic Derating
60 = Winding 3 Harmonic Derating
61 = Hottest-Spot Temperature Limit
62 = Loss-Of-Life Limit
63 = Analog Input Level 1
64 = Analog Input Level 2
65 = Winding 1 Current Demand
66 = Winding 2 Current Demand
67 = Winding 3 Current Demand
68 = Transformer Overload
69 = Aging Factor Limit
745 Transformer Management Relay
Table 8–7: 745 DATA FORMATS (Sheet 18 of 35)
FORMAT
APPLICABLE BITS
CODE
0100 0110
0000 1010 xxxx xxxx
0000 1011 xxxx xxxx
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
0000 1000
0000 1001
0000 1010
0000 1011
0000 1100
0000 1101
0000 1110
0000 1111
0000 1100 xxxx xxxx
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
0000 1000
0000 1001
0000 1010
0000 1011
0000 1100
0000 1101
0000 1110
0000 1111
0000 1101 xxxx xxxx
0000 0000
0000 0001
8 COMMUNICATIONS
DEFINITION
70 = Tap Changer Failure
Token = Element Operated
(data same as for Element Pickup)
Token = Logic Input Asserted
0 = Logic Input 1
1 = Logic Input 2
2 = Logic Input 3
3 = Logic Input 4
4 = Logic Input 5
5 = Logic Input 6
6 = Logic Input 7
7 = Logic Input 8
8 = Logic Input 9
9 = Logic Input 10
10 = Logic Input 11
11 = Logic Input 12
12 = Logic Input 13
13 = Logic Input 14
14 = Logic Input 15
15 = Logic Input 16
Token = Virtual Input Asserted
0 = Virtual Input 1
1 = Virtual Input 2
2 = Virtual Input 3
3 = Virtual Input 4
4 = Virtual Input 5
5 = Virtual Input 6
6 = Virtual Input 7
7 = Virtual Input 8
8 = Virtual Input 9
9 = Virtual Input 10
10 = Virtual Input 11
11 = Virtual Input 12
12 = Virtual Input 13
13 = Virtual Input 14
14 = Virtual Input 15
15 = Virtual Input 16
Token = Output Relay Operated
0 = Output Relay 1
1 = Output Relay 2
GE Power Management
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