GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual page 212

7.4 MODBUS MEMORY MAP
Table 7–5: 745 MEMORY MAP (Sheet 30 of 35)
GROUP ADDR
(HEX)
WINDING 3 2270
NEG SEQ TIME
2271
O/C
2272
2273
2274
2275
2276
2277
↓
227F
WINDING 1 2280
NEG SEQ INST
2281
O/C
2282
2283
2284
2285
↓
228F
WINDING 2 2290
NEG SEQ INST
2291
O/C
2292
2293
2294
2295
↓
229F
WINDING 3 22A0
NEG SEQ INST
22A1
O/C
22A2
22A3
22A4
UNDER 22A5
FREQUENCY
↓
1
22AF
7
22B0
22B1
22B2
22B3
22B4
22B5
22B6
22B7
22B8
↓
22BF
UNDER 22C0
FREQUENCY
22C1
2
22C2
22C3
22C4
22C5
22C6
22C7
7-42
Courtesy of NationalSwitchgear.com
DESCRIPTION
Winding 3 Neg Seq Time O/C Function
Winding 3 Neg Seq Time O/C Target
Winding 3 Neg Seq Time O/C Pickup
Winding 3 Neg Seq Time O/C Shape
Winding 3 Neg Seq Time O/C Multiplier
Winding 3 Neg Seq Time O/C Reset
Winding 3 Neg Seq Time O/C Block
Reserved
↓
Reserved
Winding 1 Neg Seq Inst O/C Function
Winding 1 Neg Seq Inst O/C Target
Winding 1 Neg Seq Inst O/C Pickup
Winding 1 Neg Seq Inst O/C Delay
Winding 1 Neg Seq Inst O/C Block
Reserved
↓
Reserved
Winding 2 Neg Seq Inst O/C Function
Winding 2 Neg Seq Inst O/C Target
Winding 2 Neg Seq Inst O/C Pickup
Winding 2 Neg Seq Inst O/C Delay
Winding 2 Neg Seq Inst O/C Block
Reserved
↓
Reserved
Winding 3 Neg Seq Inst O/C Function
Winding 3 Neg Seq Inst O/C Target
Winding 3 Neg Seq Inst O/C Pickup
Winding 3 Neg Seq Inst O/C Delay
Winding 3 Neg Seq Inst O/C Block
Reserved
↓
Reserved
Underfrequency 1 Function
Underfrequency 1 Target
Underfrequency 1 Minimum Operating Current
Underfrequency 1 Pickup
Underfrequency 1 Delay
Underfrequency 1 Block
Underfrequency 1 Current Sensing
Underfrequency 1 Minimum Operating Voltage
Reserved
↓
Reserved
Underfrequency 2 Function
Underfrequency 2 Target
Underfrequency 2 Minimum Operating Current
Underfrequency 2 Pickup
Underfrequency 2 Delay
Underfrequency 2 Block
Underfrequency 2 Current Sensing
Underfrequency 2 Minimum Operating Voltage
745 Transformer Management Relay
RANGE STEP UNITS
VALUE
--- --- ---
--- --- ---
× CT
0.05 to 20.00 0.01
--- --- ---
0.00 to 100.00 0.01 ---
--- --- ---
--- --- ---
↓ ↓ ↓
--- --- ---
--- --- ---
× CT
0.05 to 20.00 0.01
0 to 60000 1 ms
--- --- ---
↓ ↓ ↓
--- --- ---
--- --- ---
× CT
0.05 to 20.00 0.01
0 to 60000 1 ms
--- --- ---
↓ ↓ ↓
--- --- ---
--- --- ---
× CT
0.05 to 20.00 0.01
0 to 60000 1 ms
--- --- ---
↓ ↓ ↓
--- --- ---
--- --- ---
× CT
0.05 to 1.00 0.01
45.00 to 59.99 0.01 Hz
0.00 to 600.00 0.01 s
--- --- ---
--- --- ---
× VT
0.10 to 0.99 0.01
↓ ↓ ↓
--- --- ---
--- --- ---
× CT
0.05 to 1.00 0.01
45.00 to 59.99 0.01 Hz
0.00 to 600.00 0.01 s
--- --- ---
--- --- ---
× VT
0.01 to 0.99 0.01
7 COMMUNICATIONS
FORMAT FACTORY
CODE DEFAULT
F30 0 = Disabled
F46 1 = Latched
25 = 0.25 × CT
F3
F36 0 = Ext Inverse
F3 100 = 1.00
F68 1 = Linear
F87 0 = Disabled
↓ ↓
F30 0 = Disabled
F46 1 = Latched
1000=10.00 × CT
F3
F1 0 ms
F87 0 = Disabled
↓ ↓
F30 0 = Disabled
F46 1 = Latched
1000=10.00 × CT
F3
F1 0 ms
F87 0 = Disabled
↓ ↓
F30 0 = Disabled
F46 1 = Latched
1000=10.00 × CT
F3
F1 0 ms
F87 0 = Disabled
↓ ↓
F30 0 = Disabled
F46 0 = Self-reset
20 = 0.20 × CT
F3
F3 5900 = 59.0 Hz
F3 100 = 1.00 s
F87 0 = Disabled
F30 1 = Enabled
50 = 0.50 × VT
F3
↓ ↓
F30 0 = Disabled
F46 1 = Latched
20 = 0.20 × CT
F3
F3 5880 = 58.8 Hz
F3 10 = 0.10 s
F87 0 = Disabled
F30 1 = Enabled
50 = 0.50 × VT
F3
GE Multilin