Table of Contents
Advertisement
7.4 MODBUS MEMORY MAP
Table 7–5: 745 MEMORY MAP (Sheet 10 of 35)
GROUP
ADDR
(HEX)
HARMONIC
0430
DERATING
0431
0432
0433
↓
043F
FREQUENCY
0440
0441
0442
↓
0444
TAP CHANGER
0445
0446
↓
0448
VOLTAGE
0449
044A
044B
044C
044D
↓
044F
CURRENT
0450
DEMAND
0452
0454
0455
0456
0457
0458
0459
045B
045D
045E
045F
7
0460
0461
0462
0464
0466
0467
0468
0469
046A
046B
046D
046F
↓
0477
AMBIENT
0478
TEMP
0479
↓
047F
LOSS-OF-LIFE
0480
0481
0483
7-22
Courtesy of NationalSwitchgear.com
DESCRIPTION
Winding 1 Harmonic Derating Factor
Winding 2 Harmonic Derating Factor
Winding 3 Harmonic Derating Factor
Reserved
↓
Reserved
System Frequency
Frequency Decay Rate
Reserved
↓
Reserved
Tap Changer Position
Reserved
↓
Reserved
System Line-to-Line Voltage
Volts-per-Hertz
Line-to-Ntrl Voltage - Magnitude
Line-to-Ntrl Voltage - Angle
Reserved
↓
Reserved
Demand Data Last Clear Date (2 registers)
Demand Data Last Clear Time (2 registers)
Winding 1 Phase A Current Demand
Winding 1 Phase B Current Demand
Winding 1 Phase C Current Demand
Winding 1 Max Current Demand
Winding 1 Max Current Demand Phase
Wdg 1 Max Current Demand Date (2 registers)
Wdg 1 Max Current Demand Time (2 registers)
Winding 2 Phase A Current Demand
Winding 2 Phase B Current Demand
Winding 2 Phase C Current Demand
Winding 2 Max Current Demand
Winding 2 Max Current Demand Phase
Wdg 2 Max Current Demand Date (2 registers)
Wdg 2 Max Current Demand Time (2 registers)
Winding 3 Phase A Current Demand
Winding 3 Phase B Current Demand
Winding 3 Phase C Current Demand
Winding 3 Max Current Demand
Winding 3 Max Current Demand Phase
Wdg 3 Max Current Demand Date (2 registers)
Wdg 3 Max Current Demand Time (2 registers)
Reserved
↓
Reserved
Ambient Temperature
Reserved
↓
Reserved
Hottest-spot Winding Temperature
Total Accumulated Loss-of-Life (2 registers)
Aging Factor
745 Transformer Management Relay
RANGE
STEP
UNITS
VALUE
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
Hz
–9.99 to 9.99
0.01
Hz/s
↓
↓
↓
1 to 50
1
---
↓
↓
↓
0.00 to 600.00
0.01
kV
0.00 to 4.00
0.01
V/Hz
0.00 to 600.00
0.01
kV
0 to 359
1
° Lag
↓
↓
↓
---
---
---
---
---
---
---
---
A
---
---
A
---
---
A
---
---
A
---
---
---
---
---
---
---
---
---
---
---
A
---
---
A
---
---
A
---
---
A
---
---
---
---
---
---
---
---
---
---
---
A
---
---
A
---
---
A
---
---
A
---
---
---
---
---
---
---
---
---
↓
↓
↓
–51 to 251
1
°C
↓
↓
↓
–50 to 300
1
°C
0 to 200000
1
hours
0.0 to 2000.0
0.1
-
7 COMMUNICATIONS
FORMAT
FACTORY
CODE
DEFAULT
F3
---
F3
---
F3
---
↓
↓
F3
---
F6
---
↓
↓
F1
---
↓
↓
F3
---
F3
---
F3
---
F1
↓
↓
F23
---
F22
---
F78
---
F78
---
F78
---
F78
0 A
F18
0 = phase A
F23
Jan 01 1996
F22
00:00:00.000
F79
---
F79
---
F79
---
F79
0 A
F18
0 = phase A
F23
Jan 01 1996
F22
00:00:00.000
F80
---
F80
---
F80
---
F80
0 A
F18
0 = phase A
F23
Jan 01 1996
F22
00:00:00.000
↓
↓
F4
---
↓
↓
F4
---
F7
0 hours
F2
-
GE Multilin
Advertisement
Table of Contents
