GE Multilin 745 Communications Manual page 58

MODBUS PROTOCOL
Table 2–4: 745 memory map (Sheet 40 of 56)
Addr Description
1E41 Fault winding 3 phase A current angle
1E42 Fault winding 3 phase B current magnitude
1E43 Fault winding 3 phase B current angle
1E44 Fault winding 3 phase C current magnitude
1E45 Fault winding 3 phase C current angle
1E46 Fault winding 3 ground current magnitude
1E47 Fault winding 3 ground current angle
1E48 Fault voltage input magnitude
1E49 Fault voltage input angle
1E4A Fault frequency
1E4B Reserved
1E4C Reserved
↓ ↓
1FFF Reserved
Setpoint groups 1 to 4 (addresses 2000 to 3FFF, read/write)
Percent differential
2000 Percent differential function
2001 Percent differential target
2002 Percent differential pickup
2003 Percent differential slope 1
2004 Percent differential break point
2005 Percent differential slope 2
2006 Percent differential block
2007 Percent differential relays
Harmonic inhibit
2008 Harmonic inhibit function
2009 Harmonic inhibit parameters
200A Harmonic averaging
200B Harmonic inhibit level
200C Reserved
Energization inhibit
200D Energization inhibit function
200E Energization inhibit parameters
200F Energization inhibit harmonic averaging
2010 Energization inhibit level
2011 Energization inhibit duration
2012 Energization sensing by current
2013 Minimum energization current
2014 Energization sensing by voltage
2015 Minimum energization voltage
2016 Breakers are open signal
2017 Parallel transformer breaker close signal
2018 Reserved
Fifth harmonic inhibit
2019 Fifth harmonic inhibit function
201A Fifth harmonic averaging
201B Fifth harmonic inhibit level
2–52
Range Step
0 to 359 1
0.0 to 40.0 0.1
0 to 359 1
0.0 to 40.0 0.1
0 to 359 1
0.0 to 40.0 0.1
0 to 359 1
0.0 to 2.0 0.1
0 to 359 1
45.00 to 60.00 0.01
↓ ↓
--- ---
--- ---
0.05 to 1.00 0.01
15 to 100 1
1.0 to 20.0 0.1
50 to 100 1
--- ---
1 to 8 ---
--- ---
--- ---
--- ---
0.1 to 65.0 0.1
--- ---
--- ---
--- ---
0.1 to 65.0 0.1
0.05 to 600.00 0.01
--- ---
0.10 to 0.50 0.01
--- ---
0.50 to 0.99 0.01
--- ---
--- ---
--- ---
--- ---
0.1 to 65.0 0.1
745 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
CHAPTER 2: MODBUS PROTOCOL
Units Format Default
° Lag F1 330° Lag
× CT 10 = 1.0 × CT
F2
° Lag F1 90° Lag
× CT F2 10 = 1.0 × CT
° Lag F1 210° Lag
× CT F2 0.0 × CT
° Lag F1 0° Lag
× VT F2 10 = 1.0 × VT
° Lag F1 0° Lag
Hz F3 60.00 Hz
↓ ↓ ↓
--- F30 1 = Enabled
--- F46 1 = Latched
× CT F3 30 = 0.30 × CT
% F1 25%
× CT 20 = 2.0 × CT
F2
% F1 100%
--- F87 0 = Disabled
--- F153 None
--- F30 1 = Enabled
--- F64 0 = 2nd
--- F30 0 = Disabled
% ƒo F2 200 = 20.0% ƒo
--- F30 1 = Enabled
--- F64 0 = 2nd
--- F30 1 = Enabled
% ƒo F2 200 = 20.0% ƒo
s F1 10 = 0.10 s
--- F30 1 = Enabled
× CT F3 10 = 0.10 × CT
--- F30 0 = Disabled
× VT 85 = 0.85 × VT
F3
--- F88 0 = Disabled
--- F88 0 = Disabled
--- F30 0 = Disabled
--- F30 0 = Disabled
% ƒo F2 100 = 10.0% ƒo