Connection and addressing notes
- Protocol
- Modbus
- Register addressing
- 3xxxx notation, 30001 = protocol start address 0x0000 (0-based offset)
- Maximum parameters per read request
- 40
- Configuration parameter storage
- two consecutive 4X holding registers
- Function codes
- 03 read, 16 write
- Parameter write limit
- one parameter per message
Registers in the map: 66 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 4 (input registers). byte order big-endian. data types: single.
| MODBUS offset | Description | Units | Data type | Scale |
|---|---|---|---|---|
| 0 | Phase 1 line to neutral | V | single | |
| 2 | Phase 2 line to neutral | V | single | |
| 4 | Phase 3 line to neutral | V | single | |
| 6 | Phase 1 current | A | single | |
| 8 | Phase 2 current | A | single | |
| 10 | Phase 3 current | A | single | |
| 12 | Phase 1 power | W | single | |
| 14 | Phase 2 power | W | single | |
| 16 | Phase 3 power | W | single | |
| 18 | Phase 1 | VA | single | |
| 20 | Phase 2 | VA | single | |
| 22 | Phase 3 | VA | single | |
| 24 | Phase 1 reactive power | var | single | |
| 26 | Phase 2 reactive power | var | single | |
| 28 | Phase 3 reactive power | var | single | |
| 30 | Phase 1 power factor (1) | single | ||
| 32 | Phase 2 power factor (1) | single | ||
| 34 | Phase 3 power factor (1) | single | ||
| 36 | Phase 1 phase angle | deg | single | |
| 38 | Phase 2 phase angle | deg | single | |
| 40 | Phase 3 phase angle | deg | single | |
| 42 | Average line to neutral | V | single | |
| 46 | Average line current | A | single | |
| 48 | Sum of line currents | A | single | |
| 52 | Total system power | W | single | |
| 56 | Total system | VA | single | |
| 60 | Total system | var | single | |
| 62 | Total system power factor (1) | single | ||
| 66 | Total system phase angle | deg | single | |
| 70 | Frequency of supply voltages | Hz | single | |
| 72 | Import wh since last reset (2) | kWh/MWh | single | |
| 74 | Export wh since last reset (2) | kWh/MWh | single | |
| 76 | Import varh since last reset (2) | kvarh/MVArh | single | |
| 78 | Export varh since last reset (2) | kvarh/MVArh | single | |
| 80 | Vah since last reset (2) | kVAh/MVAh | single | |
| 82 | Ah since last reset(3) | Ah/kAh | single | |
| 84 | Total system power demand (4) | W | single | |
| 86 | Maximum total system power demand (4) | W | single | |
| 100 | Total system va demand | VA | single | |
| 102 | Maximum total system va demand | VA | single | |
| 104 | Neutral current demand | A | single | |
| 106 | Maximum neutral current demand | A | single | |
| 200 | Line 1 to line 2 | V | single | |
| 202 | Line 2 to line 3 | V | single | |
| 204 | Line 3 to line 1 | V | single | |
| 206 | Average line to line | V | single | |
| 224 | Neutral current | A | single | |
| 234 | Phase 1 l/n volts thd | % | single | |
| 236 | Phase 2 l/n volts thd | % | single | |
| 238 | Phase 3 l/n volts thd | % | single |
This is not the complete map: 50 of 66 registers are listed above. Click "Read register values online" to read any register of your device in the browser, or download the program to log the complete map.