7-60
745 Transformer Management Relay
GE Multilin
7.4 MODBUS MEMORY MAP
7 COMMUNICATIONS
7
F97
32 bits
UNSIGNED VALUE
AUTORANGING BASED ON
WINDING 2 PHASE CT PRIMARY
For CT PRIMARY
≤
2 A
Format: Signed value, 3 decimal places
Example: 1.234 stored as 1234
For 2 A < CT PRIMARY
≤
20 A
Format: Signed value, 2 decimal places
Example: 12.34 stored as 1234
For 20 A < CT PRIMARY
≤
200 A
Format: Signed value, 1 decimal place
Example: 123.4 stored as 1234
For 200 A < CT PRIMARY
≤
2000 A
Format: Signed value
Example: 1234 stored as 1234
For CT PRIMARY > 2000 A
Format: Signed value, scaled by 10
Example: 12340 stored as 1234
F98
32 bits
UNSIGNED VALUE, AUTORANGING
BASED ON WINDING 3 PHASE CT
PRIMARY
For CT PRIMARY
≤
2 A
Format: Signed value, 3 decimal places
Example: 1.234 stored as 1234
For 2 A < CT PRIMARY
≤
20 A
Format: Signed value, 2 decimal places
Example: 12.34 stored as 1234
For 20 A < CT PRIMARY
≤
200 A
Format: Signed value, 1 decimal place
Example: 123.4 stored as 1234
For 200 A < CT PRIMARY
≤
2000 A
Format: Signed value
Example: 1234 stored as 1234
For CT PRIMARY > 2000 A
Format: Signed value, scaled by 10
Example: 12340 stored as 1234
F99
16 bits
PORT USED FOR DNP
0000 0000 0000 0000
0=None
0000 0000 0000 0001
1=Com 1
0000 0000 0000 0010
2=Com 2
0000 0000 0000 0011
3=Front
F100
16 bits
COOLING TYPE FOR DRY
TRANSFORMER
0000 0000 0000 0000
0=Sealed Self Cooled
0000 0000 0000 0001
1=Vented Self cooled
0000 0000 0000 0010
2=Forced-cooled
F101
16 bits
UNASSIGNED VALUE, AUTO-
RANGING LOAD LOSS AT RATED
LOAD
Low Volt. Winding rating
≥
5 KV
Unsigned Value, 0 Decimal Places
Example: 1234 stored as 1234
1 KV
≤
Low Volt. Winding rating < 5 KV
Unsigned Value, 1 Decimal Place
Example: 123.4 stored as 1234
Low Volt. Winding rating < 1 KV
Unsigned Value, 2 Decimal Places
Example: 12.34 stored as 1234)
F102
16 bits
DATA LINK CONFIRMATION MODE
0000 0000 0000 0000
0=Never
0000 0000 0000 0001
1=Sometimes
0000 0000 0000 0010
2=Always
Table 7–6: 745 DATA FORMATS (Sheet 25 of 25)
CODE
APPLICABLE BITS
DEFINITION
