
Modbus Memory Map
Table 1: 489 Memory Map (Sheet 29 of 29)
489
Communications Guide
| ADDR | NAME | RANGE | STEP | UNITS | FORMAT | DEFAULT | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3017 | Ground Current | 0 to 20000000 | 1 | A | F14 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3019 | 0 to 50000 | 1 | Volts | F1 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 301A | 0 to 50000 | 1 | Volts | F1 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 301B | 0 to 50000 | 1 | Volts | F1 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 301C | Frequency | 0 to 12000 | 1 | Hz | F3 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 301D | Active Group | 0 to 1 | 1 | – | F1 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 301F | Real Power (MW) | 1 | MW | F13 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3021 | Reactive Power Mvar | 1 | Mar | F13 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3023 | Apparent Power MVA | 0 to 2000000 | 1 | MVA | F13 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3025 | Hottest Stator RTD Number | 1 to 12 | 1 | – | F1 | 1 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3026 | Hottest Stator RTD Temperature | 1 | °C | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3027 | Hottest Bearing RTD Number | 1 to 12 | 1 | – | F1 | 1 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3028 | Hottest Bearing RTD Temperature | 1 | °C | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3029 | Hottest Other RTD Number | 1 to 12 | 1 | – | F1 | 1 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 302A | Hottest Other RTD Temperature | 1 | °C | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 302B | Hottest Ambient RTD Number | 1 to 12 | 1 | – | F1 | 1 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 302C | Hottest Ambient RTD Temperature | 1 | °C | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 302D | Analog Input 1 | 1 | Units | F12 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 302F | Analog Input 2 | 1 | Units | F12 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3031 | Analog Input 3 | 1 | Units | F12 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3033 | Analog Input 4 | 1 | Units | F12 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3035 | Phase A Neutral Current | 0 to 999999 | 1 | Amps | F12 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3037 | Phase B Neutral Current | 0 to 999999 | 1 | Amps | F12 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3039 | Phase C Neutral Current | 0 to 999999 | 1 | Amps | F12 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30E0 | Hottest Stator RTD Temperature | 1 | °F | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30E1 | Hottest Bearing RTD Temperature | 1 | °F | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30E2 | Hottest Other RTD Temperature | 1 | °F | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30E3 | Hottest Ambient RTD Temperature | 1 | °F | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30E5 | Neutral Voltage (Fundamental) | 0 to 250000 | 1 | Volts | F10 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30E7 | Neutral Voltage (3rd Harmonic) | 0 to 250000 | 1 | Volts | F10 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30E9 | Vab/Iab | 0 to 65535 | 1 | ohms s | F1 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30EA | Vab/Iab Angle | 0 to 359 | 1 | ° | F1 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| WAVEFORM MEMORY SETUP | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F0 | Waveform Memory Trigger Date | N/A | N/A | N/A | F18 | N/A | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F2 | Waveform Memory Trigger Time | N/A | N/A | N/A | F19 | N/A | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F4 | Frequency During Trace Acquisition | 0 to 12000 | 1 | Hz | F3 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F5 | Waveform Memory Channel Selector (Holding Register) | 0 to 9 | 1 | N/A | F214 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F6 | Waveform Trigger Selector | 1 to 65535 | 1 | N/A | F1 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F7 | Waveform Trigger Cause  | 0 to 139 | 1 | N/A | F134 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F8 | Number of Samples per Waveform Capture | 1 to 768 | 1 | N/A | F1 | 168 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 30F9 | Number of Waveform Captures Taken | 0 to 65535 | 1 | N/A | F1 | 0 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| WAVEFORM MEMORY SAMPLES | 
 | 
 | 
 | 
 | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3100 | First Waveform Memory Sample | 1 | N/A | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 3400 | Last Waveform Memory Sample | 1 | N/A | F4 | 0 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
1, 2, 3 See Table footnotes on page 39
1.A Value of 65535 indicates ‘Never’
2.A value of 0xFFFF indicates “no measurable value”.
3.Maximum value turns feature ‘Off’
| GE Multilin | 
http://www.GEindustrial.com/multilin
| 39 | 
