Connect Sinotimer 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 Sinotimer logging and read.
Do you not know the meter address? Scan the device address online
Sinotimer (DDS519) - 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 | |
| 18 | Active power | kW | single | |
| 42 | Power factor | | single | |
| 54 | Frequency | Hz | single | |
| 256 | Total active energy | kWh | single | |
Sinotimer (DDS548) - MODBUS Values
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 | |
Sinotimer (DDS578) - Measurement Data
Connection and addressing notes
- Protocol
- Modbus RTU
- Interface
- RS-485
- Default baud rate
- 1200, 2400, 4800 or 9600 bps (selectable)
- Data bits
- 8
- Stop bits
- 1
- Parity
- even
- Frame format
- address + function code + data + CRC
- Data registers
- read only, function code 04
- Parameter registers
- read with function code 03, written with function code 10
- Data format
- IEEE 754 32-bit floats (4 bytes, two registers)
- Device address range
- 1-247
- Example frame device address
- 01
Registers in the map: 20. function 4 (input registers). byte order big-endian. data types: single.
| MODBUS offset | Description | Units | Data type | Scale |
|---|
| 0 | Voltage A | V | single | |
| 2 | Voltage B | V | single | |
| 4 | Voltage C | V | single | |
| 8 | Current A | A | single | |
| 10 | Current B | A | single | |
| 12 | Current C | A | single | |
| 16 | Total active power | kW | single | |
| 18 | Active power A | kW | single | |
| 20 | Active power B | kW | single | |
| 22 | Active power C | kW | single | |
| 24 | Total reactive power | var | single | |
| 26 | Reactive power A | var | single | |
| 28 | Reactive power B | var | single | |
| 30 | Reactive power C | var | single | |
| 42 | Power factor A | | single | |
| 44 | Power factor B | | single | |
| 46 | Power factor C | | single | |
| 54 | Frequency | Hz | single | |
| 256 | Total active power | kWh | single | |
| 1024 | Total reactive power | kvarh | single | |
Related MODBUS registers maps
MODBUS Maps Index
Sigineer (Grid Inverter)
Siemens Sentron PAC 4200
Sinotype (DDS024)
SmartProcess SMARTRAIL X835
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.
