The SDM230-Modbus is a RS485 100A Din Rail Single Phase Multi-function Energy Meter with RS485 Modbus/DLT645 output. It measures active energy, reactive energy, current, voltage, power, power factor, frequency, etc. The units support Max. 100A direct connection, saving the cost and avoiding the trouble to connect external CTs. Two pulse outputs and 1 communication port (RS485 Modbus/DLT645) are provided for remote monitoring and setting, suitable for monitoring energy consumption in residential, solar PV, EV Charging system, industrial and utility applications.
Electrical Characteristics | ||
Type of Measurement | RMS on single phase AC system (1P+N) | |
Measurement Accuracy | Power | 1% of range maximum |
Active Energy | IEC 62053-21 Class 1.0/ EN50470-1/3 Class B | |
Reactive Energy | IEC62053-23 Class 2, IEC 61557-12 Class 2 | |
Frequency | 0.2% of mid-frequency | |
Current | 0.5% of range maximum | |
Voltage | 0.5% of range maximum | |
Power Factor | 1% of unity (0.01) | |
Input & Output | |||
Input | Current | Rated Current (Ib/Iref) | 10A |
Max Current(Imax.) | 100A | ||
Min Current(Imin.) | 0.5A | ||
Starting Current | 40mA | ||
Voltage | Rated Voltage (Un) | 230V | |
Operational Voltage | 80%~120% of Un | ||
Output | SDM230-Pulse | 2 Pulse Output for imp/exp. energy | |
SDM230-Modbus | 2 Pulse Output + RS485 Modbus | ||
SDM230-Mbus | 2 Pulse Output + M-bus EN13757 | ||
SDM230-2T | 2 Pulse Output + RS485 Modbus + 2 Tariffs (Dual Power Source) | ||
SDM230M-DI | 2 Pulse Output + RS485 Modbus + Digital Input | ||
SDM230-Lora | 2 Pulse Output + LoraWAN | ||
RS485 Modbus Communications | |
Communication Address | 1~247 |
Transmission Distance | 1000m Maximum |
Transmission Speed | 1200bps~38400bps |
Parity | None (default), Odd, Even |
Stop Bits | 1 or 2 |
Response Time | <100 mS |
M-Bus EN13757-3 Communications | |
Communication Address | 1~250 |
Transmission Distance | 1000m Maximum |
Baud Rate | 300bps~9600bps |
Parity | None (default), Odd, Even |
Stop Bits | 1 or 2 |
