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8.3 MODBUS MEMORY MAP
Table 8–7: 745 DATA FORMATS (Sheet 5 of 35)
FORMAT
APPLICABLE BITS
CODE
xxxx 0000 0000 0001
xxxx 0000 0000 0010
xxxx 0000 0000 0011
xxxx 0000 0000 0100
xxxx 0000 0000 0101
xxxx 0000 0000 0110
xxxx 0000 0000 0111
xxxx 0000 0000 1000
xxxx 0000 0000 1001
xxxx 0000 0000 1010
xxxx 0000 0000 1011
xxxx 0000 0000 1100
xxxx 0000 0000 1101
xxxx 0000 0000 1110
xxxx 0000 0000 1111
xxxx 0000 0001 0000
xxxx 0000 0001 0001
xxxx 0000 0001 0010
xxxx 0000 0001 0011
xxxx 0000 0001 0100
xxxx 0000 0001 0101
xxxx 0000 0001 0110
xxxx 0000 0001 0111
xxxx 0000 0001 1000
xxxx 0000 0001 1001
xxxx 0000 0001 1010
xxxx 0000 0001 1011
xxxx 0000 0001 1100
xxxx 0000 0001 1101
8
xxxx 0000 0001 1110
xxxx 0000 0001 1111
xxxx 0000 0010 0000
xxxx 0000 0010 0001
xxxx 0000 0010 0010
xxxx 0000 0010 0011
xxxx 0000 0010 0100
xxxx 0000 0010 0101
xxxx 0000 0010 0110
xxxx 0000 0010 0111
xxxx 0000 0010 1000
8-76
DEFINITION
1 = Percent Differential
2 = Inst Differential
3 = W1 Phase Time OC
4 = W2 Phase Time OC
5 = W3 Phase Time OC
6 = W1 Phase Inst 1 OC
7 = W2 Phase Inst 1 OC
8 = W3 Phase Inst 1 OC
9 = W1 Phase Inst 2 OC
10 = W2 Phase Inst 2 OC
11 = W3 Phase Inst 2 OC
12 = W1 Neutral Time OC
13 = W2 Neutral Time OC
14 = W3 Neutral Time OC
15 = W1 Neutral Inst 1 OC
16 = W2 Neutral Inst 1 OC
17 = W3 Neutral Inst 1 OC
18 = W1 Neutral Inst 2 OC
19 = W2 Neutral Inst 2 OC
20 = W3 Neutral Inst 2 OC
21 = W1 Ground Time OC
22 = W2 Ground Time OC
23 = W3 Ground Time OC
24 = W1 Ground Inst 1 OC
25 = W2 Ground Inst 1 OC
26 = W3 Ground Inst 1 OC
27 = W1 Ground Inst 2 OC
28 = W2 Ground Inst 2 OC
29 = W3 Ground Inst 2 OC
30 = W1 Restd Gnd Fault
31 = W2 Restd Gnd Fault
32 = W3 Restd Gnd Fault
33 = W1 Restd Gnd Trend
34 = W2 Restd Gnd Trend
35 = W3 Restd Gnd Trend
36 = W1 Neg Seq Time OC
37 = W2 Neg Seq Time OC
38 = W3 Neg Seq Time OC
39 = W1 Neg Seq Inst OC
40 = W2 Neg Seq Inst OC
745 Transformer Management Relay
Table 8–7: 745 DATA FORMATS (Sheet 6 of 35)
FORMAT
APPLICABLE BITS
CODE
xxxx 0000 0010 1001
xxxx 0000 0010 1010
xxxx 0000 0010 1011
xxxx 0000 0010 1100
xxxx 0000 0010 1101
xxxx 0000 0010 1110
xxxx 0000 0010 1111
xxxx 0000 0011 0000
xxxx 0000 0011 0001
xxxx 0000 0011 0010
xxxx 0000 0011 0011
xxxx 0000 0011 0100
xxxx 0000 0011 0101
xxxx 0000 0011 0110
xxxx 0000 0011 0111
xxxx 0000 0011 1000
xxxx 0000 0011 1001
xxxx 0000 0011 1010
xxxx 0000 0011 1011
xxxx 0000 0011 1100
xxxx 0000 0011 1101
xxxx 0000 0011 1110
xxxx 0000 0011 1111
xxxx 0000 0100 0000
xxxx 0000 0100 0001
xxxx 0000 0100 0010
xxxx 0000 0100 0011
xxxx 0000 0100 0100
xxxx 0000 0100 0101
xxxx 0000 0100 0110
xxxx 0000 0100 0111
xxxx 0000 0100 1000
xxxx 0000 0100 1001
xxxx 0000 0100 1010
xxxx 0000 0100 1011
xxxx 0000 0100 1100
xxxx 0000 0100 1101
xxxx 0000 0100 1110
xxxx 0000 0100 1111
xxxx 0000 0101 0000
8 COMMUNICATIONS
DEFINITION
41 = W3 Neg Seq Inst OC
42 = Underfrequency 1
43 = Underfrequency 2
44 = Frequency Decay 1
45 = Frequency Decay 2
46 = Frequency Decay 3
47 = Frequency Decay 4
48 = Overfrequency
49 = 5th Harmonic Level
50 = Volts-Per-Hertz 1
51 = Volts-Per-Hertz 2
52 = W1 THD Level
53 = W2 THD Level
54 = W3 THD Level
55 = W1 Harmonic Derating
56 = W2 Harmonic Derating
57 = W3 Harmonic Derating
58 = Hottest Spot Limit
59 = Loss-Of-Life Limit
60 = Analog Level 1
61 = Analog Level 2
62 = W1 Current Demand
63 = W2 Current Demand
64 = W3 Current Demand
65 = Transformer Overload
66 = Logic Input 1
67 = Logic Input 2
68 = Logic Input 3
69 = Logic Input 4
70 = Logic Input 5
71 = Logic Input 6
72 = Logic Input 7
73 = Logic Input 8
74 = Logic Input 9
75 = Logic Input 10
76 = Logic Input 11
77 = Logic Input 12
78 = Logic Input 13
79 = Logic Input 14
80 = Logic Input 15
GE Power Management
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