Connect FF to the computer through a USB-to-serial or RS485 adapter and read its registers in your browser: click "Read register values online" under the model (Chrome or Edge, nothing to install). The tables below list the MODBUS offset, unit, data type and scale of every register shown.
For logging 24/7 into a database, CSV files or Excel, use the Advanced Serial Data Logger (for MODBUS RTU) or Advanced TCP/IP Data Logger (for MODBUS TCP): they poll the complete map of every model on this page and provide continuous FF modbus logging and log.
Do you not know the meter address? Scan the device address online
FF (LE-01) - Measurement Data
Connection and addressing notes
- Protocol
- Modbus RTU
- Interface
- RS-485
- Default baud rate
- 9600 bps
- Parity
- none
- Default device address
- 1
- Function codes
- 03 read holding registers
- Register addressing
- table lists HEX and DEC addresses
- Data format
- INT16 or INT32 values scaled by the multiplier column
Registers in the map: 27. function 3 (holding registers). byte order big-endian. data types: integer, smallint.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 256 | Voltage | V | integer | ×0.001 |
| 258 | Current | A | integer | ×0.001 |
| 260 | Active power | W | integer | |
| 262 | Apparent power | VA | integer | |
| 264 | Reactive power | var | integer | |
| 266 | Frequency | Hz | smallint | ×0.1 |
| 267 | Power factor | | smallint | ×0.001 |
| 270 | Total consumed (imported) active energy | kWh | integer | ×0.01 |
| 280 | Total returned (exported) active energy | kWh | integer | ×0.01 |
| 290 | Total active energy | kWh | integer | ×0.01 |
| 300 | Total consumed (imported) reactive en- ergy | kvarh | integer | ×0.01 |
| 310 | Total returned (exported) reactive energy | kvarh | integer | ×0.01 |
| 320 | Total reactive energy | kvarh | integer | ×0.01 |
| 330 | Total reactive energy in the first quadrant | kvarh | integer | ×0.01 |
| 340 | Total reactive energy in the second quad- rant | kvarh | integer | ×0.01 |
| 350 | Total reactive energy in the third quad- rant | kvarh | integer | ×0.01 |
| 360 | Total reactive energy in the fourth quad- rant | kvarh | integer | ×0.01 |
| 370 | Resettable auxiliary active energy meter | kWh | integer | ×0.01 |
| 372 | Resettable auxiliary reactive energy meter | kvarh | integer | ×0.01 |
| 374 | Consumed (imported) active power de- mand | W | integer | ×0.1 |
| 376 | Maximum consumed (imported) active power demand | W | integer | ×0.1 |
| 378 | Returned (exported) active power demand | W | integer | ×0.1 |
| 380 | Maximum returned (exported) active power demand | W | integer | ×0.1 |
| 384 | Consumed (imported) reactive power de- mand | var | integer | ×0.1 |
| 386 | Maximum consumed (imported) reactive power demand | var | integer | ×0.1 |
| 388 | Returned (exported) reactive power de- mand | var | integer | ×0.1 |
| 390 | Maximum returned (exported) reactive power demand | var | integer | ×0.1 |
FF (LE-03MQ) - MODBUS Mapping
Registers in the map: 67 (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 | L1 (L-n) phase voltage | V | single | |
| 2 | L2 (L-n) phase voltage | V | single | |
| 4 | L3 (L-n) phase voltage | V | single | |
| 6 | L1 current strength | A | single | |
| 8 | L2 current strength | A | single | |
| 10 | L3 current strength | A | single | |
| 12 | L1 active power | W | single | |
| 14 | L2 active power | W | single | |
| 16 | L3 active power | W | single | |
| 18 | L1 apparent power | VA | single | |
| 20 | L2 apparent power | VA | single | |
| 22 | L3 apparent power | VA | single | |
| 24 | L1 reactive power | var | single | |
| 26 | L2 reactive power | var | single | |
| 28 | L3 reactive power | var | single | |
| 30 | L1 power factor | | single | |
| 32 | L2 power factor | | single | |
| 34 | L3 power factor | | single | |
| 36 | L1 phase angle | deg | single | |
| 38 | L2 phase angle | deg | single | |
| 40 | L3 phase angle | deg | single | |
| 42 | Average phase voltage among phase and neutral wire | V | single | |
| 46 | Average line current | A | single | |
| 48 | Sum of phase 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 | Imported active energy | kWh/ MWh | single | |
| 74 | Exported active energy | kWh/MWh | single | |
| 76 | Imported reactive energy | kvarh/Mvarh | single | |
| 78 | Exported reactive energy | kvarh/Mvarh | single | |
| 80 | Apparent power | kVah/ MVAh | single | |
| 82 | Ah since last reset | Ah/kAh | single | |
| 84 | Total system power demand (*2) | W | single | |
| 86 | Maximum total system power demand (*2) | W | single | |
| 100 | Total system VA demand (*2) | VA | single | |
| 102 | Maximum total system VA demand | VA | single | |
| 104 | Neutral current demand | A | single | |
| 106 | Maximum neutral current demand | A | single | |
| 200 | L1-L2 interphase voltage | W | single | |
| 202 | L2-L3 interphase voltage | W | single | |
| 204 | L3-L1 interphase voltage | W | single | |
| 206 | Average interphase voltage | W | 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 67 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.
Related MODBUS registers maps
MODBUS Maps Index
Epsolar (LS-B Series)
Epever (B Series)
Farnell iEM3100-iEM3200
Fimer (3Q4200)
Note: Products and companies mentioned here are used only for definition and identification purposes and can be trademarks and/or registered trademarks of the respective companies.
