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7 COMMUNICATIONS
Table 7–5: 745 MEMORY MAP (Sheet 3 of 35)
GROUP
ADDR
(HEX)
ELEMENT
0226
FLAGS
0227
continued
0228
0229
022A
022B
022C
022D
022E
022F
0230
0231
0232
0233
0234
0235
0236
0237
0238
0239
023A
023B
023C
023D
023E
023F
0240
0241
0242
0243
0244
0245
0246
0247
0248
0249
024A
024B
024C
024D
024E
024F
↓
025F
INPUT /
0260
OUTPUT
0261
FLAGS
0262
0263
0264
0265
↓
027F
GE Multilin
Courtesy of NationalSwitchgear.com
DESCRIPTION
Winding 1 Ground Inst O/C 2 Flag
Winding 2 Ground Inst O/C 2 Flag
Winding 3 Ground Inst O/C 2 Flag
Winding 1 Restricted Ground Time O/C Flag
Winding 2 Restricted Ground Time O/C Flag
Winding 3 Restricted Ground Time O/C Flag
Winding 1 Restricted Ground Inst O/C Flag
Winding 2 Restricted Ground Inst O/C Flag
Winding 3 Restricted Ground Inst O/C Flag
Winding 1 Neg Seq Time O/C Flag
Winding 2 Neg Seq Time O/C Flag
Winding 3 Neg Seq Time O/C Flag
Winding 1 Neg Seq Instantaneous O/C Flag
Winding 2 Neg Seq Instantaneous O/C Flag
Winding 3 Neg Seq Instantaneous O/C Flag
Underfrequency 1 Flag
Underfrequency 2 Flag
Frequency Decay Rate 1 Flag
Frequency Decay Rate 2 Flag
Frequency Decay Rate 3 Flag
Frequency Decay Rate 4 Flag
Overfrequency Flag
5th Harmonic Level Flag
Volts-Per-Hertz 1 Flag
Volts-Per-Hertz 2 Flag
Winding 1 THD Level Flag
Winding 2 THD Level Flag
Winding 3 THD Level Flag
Winding 1 Harmonic Derating Flag
Winding 2 Harmonic Derating Flag
Winding 3 Harmonic Derating Flag
Hottest-Spot Temperature Limit Flag
Loss-Of-Life Limit Flag
Analog Input Level 1 Flag
Analog Input Level 2 Flag
Winding 1 Current Demand Flag
Winding 2 Current Demand Flag
Winding 3 Current Demand Flag
Transformer Overload Flag
Aging Factor Limit Flag
Tap Changer Failure Flag
Reserved
↓
Reserved
Logic Input Assert Flags
Virtual Input Assert Flags
Output Relay Operate Flags
Virtual Output Operate Flags
Timer Operate Flags
Reserved
↓
Reserved
745 Transformer Management Relay
7.4 MODBUS MEMORY MAP
RANGE
STEP
UNITS
VALUE
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FORMAT
FACTORY
CODE
DEFAULT
F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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F52
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7
F52
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F52
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F52
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F52
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F52
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F52
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↓
F56
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F56
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F57
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F59
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F61
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↓
↓
7-15
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