Connect Earu 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 Earu data logger and record.
Do you not know the meter address? Scan the device address online
Earu (DDS661) - MODBUS Mapping
Registers in the map: 6. function 4 (input registers). byte order big-endian. data types: single.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 0 | Voltage | V | single | |
| 8 | Current | A | single | |
| 16 | Active power | kWh | single | |
| 42 | Power factor | | single | |
| 54 | Frequency | Hz | single | |
| 256 | Total active power | kWh | single | |
Related MODBUS registers maps
MODBUS Maps Index
ENTES (MPR7 Series)
ENTES (MPR1 Series)
Eastron (SDM120)
Eastron (X96)
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.
