Connect Lumel 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 Lumel logging and read.
Do you not know the meter address? Scan the device address online
Lumel (ND25) - MODBUS Mapping
Connection and addressing notes
- Protocol
- Modbus
- Function codes
- 03 read holding registers, 04 read input registers, 16 preset multiple registers
- Baud rate options
- 4800, 9600, 19200, 38400, 57600 bps, user selectable from the front panel
- Data format
- 32-bit IEEE 754 floats, most significant byte first
- Alternative byte order
- least significant byte first
- Register addressing
- 3X and 4X references
- Response timeout
- 300 ms before retrying
Registers in the map: 102 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 3 (holding registers). byte order big-endian. data types: single.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 0 | V1 | | single | |
| 2 | V2 | | single | |
| 4 | V3 | | single | |
| 6 | I1 | | single | |
| 8 | I2 | | single | |
| 10 | I3 | | single | |
| 12 | W1 | | single | |
| 14 | W2 | | single | |
| 16 | W3 | | single | |
| 18 | VA1 | | single | |
| 20 | VA2 | | single | |
| 22 | VA3 | | single | |
| 24 | VAR1 | | single | |
| 26 | VAR2 | | single | |
| 28 | VAR3 | | single | |
| 30 | PF1 | | single | |
| 32 | PF2 | | single | |
| 34 | PF3 | | single | |
| 36 | Angle1 | | single | |
| 38 | Angle2 | | single | |
| 40 | Angle3 | | single | |
| 42 | Volt avg | | single | |
| 44 | Volt sum | | single | |
| 46 | Current avg | | single | |
| 48 | Current sum | | single | |
| 50 | Watt avg | | single | |
| 52 | Watt sum | | single | |
| 54 | VA avg | | single | |
| 56 | VA sum | | single | |
| 58 | VAr avg | | single | |
| 60 | VAr sum | | single | |
| 62 | PF avg | | single | |
| 64 | PF sum | | single | |
| 66 | Phase angle avg | | single | |
| 68 | Phase angle sum | | single | |
| 70 | Freg | | single | |
| 72 | Wh import | | single | |
| 74 | Wh export | | single | |
| 76 | VArh capacitive | | single | |
| 78 | VAr inductve | | single | |
| 80 | VAh | | single | |
| 84 | kWV demand imp | | single | |
| 86 | Max kW demand imp | | single | |
| 88 | kW exp demand | | single | |
| 90 | Max kW exp demand | | single | |
| 92 | kVAr cap demand | | single | |
| 94 | Max kVAr demand cap | | single | |
| 96 | kVAr ind. demand | | single | |
| 98 | Max kVAr ind. demand | | single | |
| 100 | KVA demand | | single | |
This is not the complete map: 50 of 102 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.
Lumel (ND30) - MODBUS Registers
Registers in the map: 161 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 3 (holding registers). byte order big-endian. data types: single.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 6000 | L1 phase voltage | V | single | |
| 6002 | L1 phase current | A | single | |
| 6004 | L1 phase active_power | W | single | |
| 6006 | LIphase reactive_power | var | single | |
| 6008 | L1 phase apparent power | VA | single | |
| 6010 | L1 phase active power factor | | single | |
| 6012 | Tgp factor of L1 phase | | single | |
| 6014 | THD U1 | % | single | |
| 6016 | THD I1 | | single | |
| 6018 | L2 phase voltage | | single | |
| 6022 | L2 phase current | | single | |
| 6024 | L2 phase reactive_power | var | single | |
| 6026 | L2 phase apparent power | VA | single | |
| 6028 | L2 phase active power factor | | single | |
| 6030 | Tg factor of L2 phase | | single | |
| 6032 | THD U2 | % | single | |
| 6034 | THD I2 | % | single | |
| 6036 | L3 phase voltage | | single | |
| 6038 | L3 phase current | A | single | |
| 6040 | L3 phase active_power | W | single | |
| 6042 | L3_phase_reactive_power | var | single | |
| 6044 | L3 phase apparent power | VA | single | |
| 6046 | L3 phase active power factor | | single | |
| 6048 | Tgp factor of L3 phase | | single | |
| 6050 | THD U3 | % | single | |
| 6052 | THD I3 | | single | |
| 6054 | Mean 3-phase voltage | | single | |
| 6056 | Mean 3-phase current | | single | |
| 6058 | 3-phase active power | W | single | |
| 6060 | 3-phase reactive power | var | single | |
| 6062 | 3-phase apparent power | VA | single | |
| 6064 | 3-phase active power factor | | single | |
| 6066 | Mean tg factor for 3 phases | | single | |
| 6068 | THD U mean 3-phase | | single | |
| 6070 | THD I mean 3-phase | % | single | |
| 6072 | Frequency | | single | |
| 6074 | Phase-to-phase_voltage L1-2 | | single | |
| 6076 | Phase-to-phase_voltage L2-3 | | single | |
| 6078 | Phase-to-phase_voltage L3-1 | | single | |
| 6080 | Mean phase-to-phase voltage | | single | |
| 6082 | Active power averaged (P demand) | W | single | |
| 6084 | Reactive power averaged (S demand) | VA | single | |
| 6086 | Current averaged (I demand) | A | single | |
| 6088 | Neutral wire current | | single | |
| 6090 | Active 3-phase import energy | MWh | single | ×100 |
| 6092 | Active 3-phase import energy | kWh | single | |
| 6094 | Active 3-phase export energy | MWh | single | ×100 |
| 6096 | Active 3-phase export energy | kWh | single | |
| 6098 | Reactive 3-phase inductive energy | Mvarh | single | ×100 |
| 6100 | Reactive 3-phase inductive energy | kVAr h | single | |
This is not the complete map: 50 of 161 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
Lovato Electric (RGK800,RGK900,RGK Series)
Lovato (DMK40)
Masibus (PM2160-3P3W)
Meatrol (ME237)
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.
