Memory Map Data Formats - GE 489 Communications Manual

ADDR
302A Hottest Other RTD Temperature
302B Hottest Ambient RTD Number
302C Hottest Ambient RTD Temperature
302D Analog Input 1
302F Analog Input 2
3031 Analog Input 3
3033 Analog Input 4
3035 Phase A Neutral Current
3037 Phase B Neutral Current
3039 Phase C Neutral Current
30E0 Hottest Stator RTD Temperature
30E1 Hottest Bearing RTD Temperature
30E2 Hottest Other RTD Temperature
30E3 Hottest Ambient RTD Temperature
30E5 Neutral Voltage (Fundamental)
30E7 Neutral Voltage (3rd Harmonic)
30E9 Vab/Iab
30EA Vab/Iab Angle
WAVEFORM MEMORY SETUP
30F0 Waveform Memory Trigger Date
30F2 Waveform Memory Trigger Time
30F4 Frequency During Trace Acquisition
30F5 Waveform Memory Channel Selector (Holding Register)
30F6 Waveform Trigger Selector
30F7 Waveform Trigger Cause (Read-only)
30F8 Number of Samples per Trace
30F9 Number of Waveform Captures Taken
WAVEFORM MEMORY SAMPLES
3100 First Waveform Memory Sample
3700 Last Waveform Memory Sample
1, 2, 3 See Table footnotes on page page 42
*. A Value of 65535 indicates 'Never'
. A value of 0xFFFF indicates "no measurable value".
. Maximum value turns feature 'Off'
CG.3.8 Memory Map Data Formats
42
Table CG–1: 489 Memory Map (Sheet 30 of 30)
Name
The data formats used in the Modbus memory map are shown below.
Table CG–2: Data Formats (Sheet 1 of 14)
CODE
16 bits
F1
Example: 1234 stored as 1234
16 bits
F2
Example: 123.4 stored as 1234
16 bits
F3
Example: 12.34 stored as 1234
16 bits
F4
Example: –1234 stored as –1234 (i.e. 64302)
RANGE STEP
–50 to 250 1
1 to 12 1
–50 to 250 1
–50000 to 50000 1
–50000 to 50000 1
–50000 to 50000 1
–50000 to 50000 1
0 to 999999 1
0 to 999999 1
0 to 999999 1
–50 to 250 1
–50 to 250 1
–50 to 250 1
–50 to 250 1
0 to 250000 1
0 to 250000 1
0 to 65535 1
0 to 359 1
N/A N/A
N/A N/A
0 to 12000 1
0 to 9 1
1 to 65535 1
0 to 139 1
1 to 1536 -
0 to 65535 1
–32767 to 32767 1
–32767 to 32767 1
TYPE DEFINITION
UNSIGNED VALUE
UNSIGNED VALUE,
1 DECIMAL PLACE
UNSIGNED VALUE,
2 DECIMAL PLACES
2's COMPLEMENT SIGNED VALUE
489 GENERATOR MANAGEMENT RELAY – COMMUNICATIONS GUIDE
UNITS FORMAT DEFAULT
°C F4 0
– F1 1
°C F4 0
Units F12 0
Units F12 0
Units F12 0
Units F12 0
Amps F12 0
Amps F12 0
Amps F12 0
°F F4 0
°F F4 0
°F F4 0
°F F4 0
Volts F10 0
Volts F10 0
ohms s F1 0
° F1 0
N/A F18 N/A
N/A F19 N/A
Hz F3 0
N/A F214 0
N/A F1 0
N/A F134 0
- F1 N/A
N/A F1 0
- F4 0
- F4 0