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7.4 MODBUS MEMORY MAP
Table 7–5: 745 MEMORY MAP (Sheet 24 of 35)
GROUP
ADDR
(HEX)
HARMONIC
2008
INHIBIT
2009
200A
200B
200C
ENERGI-
200D
ZATION
200E
INHIBIT
200F
2010
2011
2012
2013
2014
2015
2016
2017
2018
5TH
2019
HARMONIC
201A
INHIBIT
201B
201C
↓
201F
INST
2020
DIFFERENTIAL
2021
2022
2023
2024
↓
203F
WINDING 1
2040
PHASE TIME
2041
O/C
2042
2043
7
2044
2045
2046
2047
2048
↓
204F
WINDING 2
2050
PHASE TIME
2051
O/C
2052
2053
2054
2055
2056
2057
2058
↓
205F
7-36
Courtesy of NationalSwitchgear.com
DESCRIPTION
Harmonic Inhibit Function
Harmonic Inhibit Parameters
Harmonic Averaging
Harmonic Inhibit Level
Reserved
Energization Inhibit Function
Energization Inhibit Parameters
Harmonic Averaging
Energization Inhibit Level
Energization Inhibit Duration
Energization Sensing By Current
Minimum Energization Current
Energization Sensing By Voltage
Minimum Energization Voltage
Breakers Are Open Signal
Parallel Transformer Breaker Close Signal
Reserved
5th Harmonic Inhibit Function
Harmonic Averaging
5th Harmonic Inhibit Level
Reserved
↓
Reserved
Inst Differential Function
Inst Differential Target
Inst Differential Pickup
Inst Differential Block
Reserved
↓
Reserved
Winding 1 Phase Time O/C Function
Winding 1 Phase Time O/C Target
Winding 1 Phase Time O/C Pickup
Winding 1 Phase Time O/C Shape
Winding 1 Phase Time O/C Multiplier
Winding 1 Phase Time O/C Reset
Winding 1 Phase Time O/C Block
Winding 1 Harmonic Derating Correction
Reserved
↓
Reserved
Winding 2 Phase Time O/C Function
Winding 2 Phase Time O/C Target
Winding 2 Phase Time O/C Pickup
Winding 2 Phase Time O/C Shape
Winding 2 Phase Time O/C Multiplier
Winding 2 Phase Time O/C Reset
Winding 2 Phase Time O/C Block
Winding 2 Harmonic Derating Correction
Reserved
↓
Reserved
745 Transformer Management Relay
RANGE
STEP
UNITS
VALUE
---
---
---
---
---
---
---
---
---
0.1 to 65.0
0.1
% ƒo
---
---
---
---
---
---
---
---
---
0.1 to 65.0
0.1
% ƒo
0.05 to 600.00
0.01
s
---
---
---
× CT
0.10 to 0.50
0.01
---
---
---
× VT
0.50 to 0.99
0.01
---
---
---
---
---
---
---
---
---
---
---
---
0.1 to 65.0
0.1
% ƒo
↓
↓
↓
---
---
---
---
---
---
× CT
3.00 to 20.00
0.01
---
---
---
↓
↓
↓
---
---
---
---
---
---
× CT
0.05 to 20.00
0.01
---
---
---
0.00 to 100.00
0.01
---
---
---
---
---
---
---
---
---
---
↓
↓
↓
---
---
---
---
---
---
× CT
0.05 to 20.00
0.01
---
---
---
0.00 to 100.00
0.01
---
---
---
---
---
---
---
---
---
---
↓
↓
↓
7 COMMUNICATIONS
FORMAT
FACTORY
CODE
DEFAULT
F30
1 = Enabled
F64
0 = 2nd
F30
0 = Disabled
F2
200 = 20.0% ƒo
F30
1 = Enabled
F64
0 = 2nd
F30
1 = Enabled
F2
200 = 20.0% ƒo
F1
10 = 0.10 s
F30
1 = Enabled
10 = 0.10 × CT
F3
F30
0 = Disabled
85 = 0.85 × VT
F3
F88
0 = Disabled
F88
0 = Disabled
F30
0 = Disabled
F30
0 = Disabled
F2
100 = 10.0% ƒo
↓
↓
F30
1 = Enabled
F46
1 = Latched
800 = 8.00 × CT
F3
F87
0 = Disabled
↓
↓
F30
1 = Enabled
F46
1 = Latched
120 = 1.20 × CT
F3
F36
0 = Ext Inverse
F3
100 = 1.00
F68
1 = Linear
F87
0 = Disabled
F30
0 = Disabled
↓
↓
F30
1 = Enabled
F46
1 = Latched
120 = 1.20 × CT
F3
F36
0 = Ext Inverse
F3
100 = 1.00
F68
1 = Linear
F87
0 = Disabled
F30
0 = Disabled
↓
↓
GE Multilin
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