GE Multilin 745 Communications Manual page 67

CHAPTER 2: MODBUS PROTOCOL
Table 2–4: 745 memory map (Sheet 49 of 56)
Addr Description
2282 Winding 1 negative-sequence inst. overcurrent pickup
2283 Winding 1 negative-sequence inst. overcurrent delay
2284 Winding 1 negative-sequence inst. overcurrent block
2285 Winding 1 negative-sequence inst. overcurrent relays
2286 Reserved
↓ ↓
228F Reserved
Winding 2 negative-sequence instantaneous overcurrent
2290 Winding 2 negative-sequence inst. overcurrent function
2291 Winding 2 negative-sequence inst. overcurrent target
2292 Winding 2 negative-sequence inst. overcurrent pickup
2293 Winding 2 negative-sequence inst. overcurrent delay
2294 Winding 2 negative-sequence inst. overcurrent block
2295 Winding 2 negative-sequence inst. overcurrent relays
2296 Reserved
↓ ↓
229F Reserved
Winding 3 negative-sequence instantaneous overcurrent
22A0 Winding 3 negative-sequence inst. overcurrent function
22A1 Winding 3 negative-sequence inst. overcurrent target
22A2 Winding 3 negative-sequence inst. overcurrent pickup
22A3 Winding 3 negative-sequence inst. overcurrent delay
22A4 Winding 3 negative-sequence inst. overcurrent block
22A5 Winding 3 negative-sequence inst. overcurrent relays
22A6 Reserved
↓ ↓
22AF Reserved
Underfrequency 1
22B0 Underfrequency 1 function
22B1 Underfrequency 1 target
22B2 Underfrequency 1 minimum operating current
22B3 Underfrequency 1 pickup
22B4 Underfrequency 1 delay
22B5 Underfrequency 1 block
22B6 Underfrequency 1 current sensing
22B7 Underfrequency 1 minimum operating voltage
22B8 Underfrequency 1 relays
22B9 Reserved
↓ ↓
22BF Reserved
Underfrequency 2
22C0 Underfrequency 2 function
22C1 Underfrequency 2 target
22C2 Underfrequency 2 minimum operating current
22C3 Underfrequency 2 pickup
22C4 Underfrequency 2 delay
22C5 Underfrequency 2 block
745 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
Range Step
0.05 to 20.00 0.01
0 to 60000 1
--- ---
1 to 8 ---
↓ ↓
--- ---
--- ---
0.05 to 20.00 0.01
0 to 60000 1
--- ---
1 to 8 ---
↓ ↓
--- ---
--- ---
0.05 to 20.00 0.01
0 to 60000 1
--- ---
1 to 8 ---
↓ ↓
--- ---
--- ---
0.05 to 1.00 0.01
45.00 to 59.99 0.01
0.00 to 600.00 0.01
--- ---
--- ---
0.10 to 0.99 0.01
1 to 8 ---
↓ ↓
--- ---
--- ---
0.05 to 1.00 0.01
45.00 to 59.99 0.01
0.00 to 600.00 0.01
--- ---
MODBUS PROTOCOL
Units Format Default
× CT F3 1000=10.00xCT
ms F1 0 ms
--- F87 0 = Disabled
--- F153 None
↓ ↓ ↓
--- F30 0 = Disabled
--- F46 1 = Latched
× CT F3 1000=10.00xCT
ms F1 0 ms
--- F87 0 = Disabled
--- F153 None
↓ ↓ ↓
--- F30 0 = Disabled
--- F46 1 = Latched
× CT
F3 1000=10.00xCT
ms F1 0 ms
--- F87 0 = Disabled
--- F153 None
↓ ↓ ↓
--- F30 0 = Disabled
--- F46 0 = Self-reset
× CT F3 20 = 0.20 × CT
Hz F3 5900 = 59.0 Hz
s F3 100 = 1.00 s
--- F87 0 = Disabled
--- F30 1 = Enabled
× VT F3 50 = 0.50 × VT
--- F153 None
↓ ↓ ↓
--- F30 0 = Disabled
--- F46 1 = Latched
× CT F3 20 = 0.20 × CT
Hz F3 5880 = 58.8 Hz
s F3 10 = 0.10 s
--- F87 0 = Disabled
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