GE Multilin 745 Communications Manual page 36

MODBUS PROTOCOL
Table 2–4: 745 memory map (Sheet 18 of 56)
Addr Description
Harmonic derating
0430 Winding 1 harmonic derating factor
0431 Winding 2 harmonic derating factor
0432 Winding 3 harmonic derating factor
0433 Reserved
0434 Reserved
↓ ↓
043F Reserved
Frequency
0440 System Frequency
0441 Frequency Decay Rate
0442 Reserved
0443 Reserved
0444 Reserved
Tap changer
0445 Tap changer position
0446 Reserved
0447 Reserved
0448 Reserved
Voltage
0449 System line-to-line voltage
044A Volts-per-hertz
044B Line-to-neutral voltage magnitude
044C Line-to-neutral voltage angle
044D Reserved
044E Reserved
044F Reserved
Current demand
0450 Demand data last clear date (2 registers)
0452 Demand data last clear time (2 registers)
0454 Winding 1 phase A current demand
0455 Winding 1 phase B current demand
0456 Winding 1 phase C current demand
0457 Winding 1 maximum current demand
0458 Winding 1 maximum current demand phase
0459 Winding 1 maximum current demand date (2 registers)
045B Winding 1 maximum current demand time (2 registers)
045D Winding 2 phase A current demand
045E Winding 2 phase B current demand
045F Winding 2 phase C current demand
0460 Winding 2 maximum current demand
0461 Winding 2 maximum current demand phase
0462 Winding 2 maximum current demand date (2 registers)
0464 Winding 2 maximum current demand time (2 registers)
0466 Winding 3 phase A current demand
0467 Winding 3 phase B current demand
0468 Winding 3 phase C current demand
2–30
Range Step
0.00 to 1.00 0.01
0.00 to 1.00 0.01
0.00 to 1.00 0.01
↓ ↓
0.00 to 99.99 0.01
–9.99 to 9.99 0.01
1 to 50 1
0.00 to 600.00 0.01
0.00 to 4.00 0.01
0.00 to 600.00 0.01
0 to 359 1
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745 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
CHAPTER 2: MODBUS PROTOCOL
Units Format Default
--- F3 ---
--- F3 ---
--- F3 ---
↓ ↓ ↓
Hz F3 ---
Hz/s F6 ---
--- F1 ---
kV F3 ---
V/Hz F3 ---
kV F3 ---
° Lag F1
--- F23 ---
--- F22 ---
A F78 ---
A F78 ---
A F78 ---
A F78 0 A
--- F18 0 = phase A
--- F23 Jan 01 1996
--- F22 00:00:00.000
A F79 ---
A F79 ---
A F79 ---
A F79 0 A
--- F18 0 = phase A
--- F23 Jan 01 1996
--- F22 00:00:00.000
A F80 ---
A F80 ---
A F80 ---