Table 6–2: data formats (sheet 5 of 5) – GE 489 User Manual
Page 200

6-38
489 Generator Management Relay
GE Multilin
6.3 MODBUS MEMORY MAP
6 COMMUNICATIONS
6
F211
Unsigned
16 bit integer
Volts/Hertz element type
0 = Curve #1, 1 = Curve #2, 2 = Curve #2, 3 = Definite Time
F212
Unsigned
16 bit integer
RTD number
F213
Unsigned
16 bit integer
Communications monitor port selection
0 = Computer RS485, 1 = Auxiliary RS485, 2 = Front Panel RS232
F214
Unsigned 16 bit
integer
Waveform Memory Channel Selector
F215
Unsigned
16 bit integer
Current Source
0 = Neutral-end CTs; 1 = Output-end CTs
F216
Unsigned
16 bit integer
DNP Port Selection
0 = None, 1 = Computer RS485, 2 = Auxiliary RS485, 3 = Front Panel RS485
F217
Unsigned
16 bit integer
Ground Directional MTA
0 = 0°, 1 = 90°, 2 = 180°, 3 = 270°
F218
Unsigned
16 bit integer
Breaker State
0 = 52 Closed, 1 = 52 Open/Closed
F219
Unsigned
16 bit integer
Step Up Transformer Type
0 = None, 1 = Delta/Wye
F220
Unsigned
16 bit integer
IRIG-B Type
0 = None, 1 = DC Shift, 2 = Amplitude Modulated
Table 6–2: DATA FORMATS (SHEET 5 OF 5)
FORMAT
CODE
TYPE
DEFINITION
VALUE
PARAMETER
VALUE
PARAMETER
0
All
7
RTD #7
1
RTD #1
8
RTD #8
2
RTD #2
9
RTD #9
3
RTD #3
10
RTD #10
4
RTD #4
11
RTD #11
5
RTD #5
12
RTD #12
6
RTD #6
VALUE PARAMETER
VALUE PARAMETER
0
Phase A line current
512 counts = 1
× CT
5
Neutral-end phase C line current
512 counts = 1
× CT
1
Phase B line current
512 counts = 1
× CT
6
Ground current
512 counts = 1
× CT
2
Phase C line current
512 counts = 1
× CT
7
Phase A to neutral voltage
3500 counts = 120 secondary volts
3
Neutral-end phase A line current
512 counts = 1
× CT
8
Phase B to neutral voltage
3500 counts = 120 secondary volts
4
Neutral-end phase B line current
512 counts equals 1
× CT
9
Phase C to neutral voltage
3500 counts = 120 secondary volts