GE Multilin 745 Communications Manual page 79

CHAPTER 2: MODBUS PROTOCOL
745 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
Value Bit arrangement
35 –––– 0000 0010 0011
36 –––– 0000 0010 0100
37 –––– 0000 0010 0101
38 –––– 0000 0010 0110
39 –––– 0000 0010 0111
40 –––– 0000 0010 1000
41 –––– 0000 0010 1001
42 –––– 0000 0010 1010
43 –––– 0000 0010 1011
44 –––– 0000 0010 1100
45 –––– 0000 0010 1101
46 –––– 0000 0010 1110
47 –––– 0000 0010 1111
48 –––– 0000 0011 0000
49 –––– 0000 0011 0001
50 –––– 0000 0011 0010
51 –––– 0000 0011 0011
52 –––– 0000 0011 0100
53 –––– 0000 0011 0101
54 –––– 0000 0011 0110
55 –––– 0000 0011 0111
56 –––– 0000 0011 1000
57 –––– 0000 0011 1001
58 –––– 0000 0011 1010
59 –––– 0000 0011 1011
60 –––– 0000 0011 1100
61 –––– 0000 0011 1101
62 –––– 0000 0011 1110
63 –––– 0000 0011 1111
64 –––– 0000 0100 0000
65 –––– 0000 0100 0001
66 –––– 0000 0100 0010
67 –––– 0000 0100 0011
68 –––– 0000 0100 0100
69 –––– 0000 0100 0101
70 –––– 0000 0100 0110
71 –––– 0000 0100 0111
72 –––– 0000 0100 1000
73 –––– 0000 0100 1001
74 –––– 0000 0100 1010
75 –––– 0000 0100 1011
76 –––– 0000 0100 1100
77 –––– 0000 0100 1101
78 –––– 0000 0100 1110
79 –––– 0000 0100 1111
80 –––– 0000 0101 0000
81 –––– 0000 0101 0001
Cause of event
Winding 3 restricted ground trend
Winding 1 negative-sequence time overcurrent
Winding 2 negative-sequence time overcurrent
Winding 3 negative-sequence time overcurrent
Winding 1 negative-sequence instantaneous overcurrent
Winding 2 negative-sequence instantaneous overcurrent
Winding 3 negative-sequence instantaneous overcurrent
Underfrequency 1
Underfrequency 2
Frequency decay 1
Frequency decay 2
Frequency decay 3
Frequency decay 4
Overfrequency
Fifth harmonic level
Volts per hertz 1
Volts per hertz 2
Winding 1 THD level
Winding 2 THD level
Winding 3 THD level
Winding 1 harmonic derating
Winding 2 harmonic derating
Winding 3 harmonic derating
Hottest-spot limit
Loss-of-life limit
Analog input level 1
Analog input level 2
Winding 1 current demand
Winding 2 current demand
Winding 3 current demand
Transformer overload
Logic input 1
Logic input 2
Logic input 3
Logic input 4
Logic input 5
Logic input 6
Logic input 7
Logic input 8
Logic input 9
Logic input 10
Logic input 11
Logic input 12
Logic input 13
Logic input 14
Logic input 15
Logic input 16
MODBUS PROTOCOL
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