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MODBUS PROTOCOL
Table 2–4: 745 memory map (Sheet 36 of 56)
Addr
Description
Output relay 1
1480
Output relay 1 name (9 registers)
1489
Output relay 1 operation
148A
Output relay 1 type
148B
Output relay 1 FlexLogic™ (20 registers)
149F
Reserved
14A0
Reserved
↓
↓
14AF
Reserved
Output relay 2
14B0
Output relay 2 name (9 registers)
14B9
Output relay 2 operation
14BA
Output relay 2 type
14BB
Output relay 2 FlexLogic™ (20 registers)
14CF
Reserved
14D0
Reserved
↓
↓
14DF
Reserved
Output relay 3
14E0
Output relay 3 name (9 registers)
14E9
Output relay 3 operation
14EA
Output relay 3 type
14EB
Output relay 3 FlexLogic™ (20 registers)
14FF
Reserved
1500
Reserved
↓
↓
150F
Reserved
Output relay 4
1510
Output relay 4 name (9 registers)
1519
Output relay 4 operation
151A
Output relay 4 type
151B
Output relay 4 FlexLogic™ (20 registers)
152F
Reserved
1530
Reserved
↓
↓
153F
Reserved
Output relay 5
1540
Output relay 5 name (9 registers)
1549
Output relay 5 operation
154A
Output relay 5 type
154B
Output relay 5 FlexLogic™ (20 registers)
155F
Reserved
1560
Reserved
↓
↓
156F
Reserved
Output relay 6
1570
Output relay 6 name (9 registers)
2–48
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Step
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745 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
CHAPTER 2: MODBUS PROTOCOL
Units
Format
Default
---
F33
Solid State Trip
---
F66
0=self-resetting
---
F38
0 = Trip
---
F47
---
↓
↓
↓
---
F33
Trip 1
---
F66
0=self-resetting
---
F38
0 = Trip
---
F47
---
↓
↓
↓
---
F33
Trip 2
---
F66
0=self-resetting
---
F38
0 = Trip
---
F47
---
↓
↓
↓
---
F33
Volts/Hertz Trip
---
F66
0=self-resetting
---
F38
0 = Trip
---
F47
---
↓
↓
↓
---
F33
Overflux Alarm
---
F66
0=self-resetting
---
F38
1 = Alarm
---
F47
---
↓
↓
↓
---
F33
Frequency Trip 1
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