GE 489 Instruction Manual page 200

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