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Eastron SDM120-M User Manual
SDM120-M
Single-Phase Multi-function DIN Rail Meter
Measures kWh, kVArh, kW, kVAr, KVA, PF, Hz, dmd, V, A, etc.
Bi-directional measurement IMP & EXP
Two pulse outputs
RS485 Modbus RTU
Din rail 35mm
45A direct connection
Class C(Class 0.5) / Class B(Class 1)
EN50470-3:2022(Latest MID standard)
Zhejiang Eastron Electronic Co.,Ltd.
User Manual V1.0
Web: www.eastron.com.cn
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Table of Contents
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Summary of Contents for Eastron SDM120-M
- Page 1 Eastron SDM120-M User Manual SDM120-M Single-Phase Multi-function DIN Rail Meter Measures kWh, kVArh, kW, kVAr, KVA, PF, Hz, dmd, V, A, etc. Bi-directional measurement IMP & EXP Two pulse outputs RS485 Modbus RTU Din rail 35mm ...
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Page 2: Specification
Eastron SDM120-M User Manual Application The energy-meters SDM120-M is used to measure single-phase applications like residential, utility and Industrial. The unit measures and displays various important electrical parameters. It equipped with a white back-lighted LCD screen for prefect reading. As well as a RS485 communication port for remote reading and monitoring. - Page 3 Eastron SDM120-M User Manual Environment Operating temperature -40℃ to + 70℃ Storage and transportation temperature -40℃ to + 80℃ Reference temperature 23℃±2℃ Relative humidity 0 to 95%, non-condensing Altitude up to 2000m Warm up time Installation category CAT III Mechanical Environment...
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Page 4: Operation
Eastron SDM120-M User Manual PART 2 Operation Initialization Display When it is powered on, the meter will initialize and do self-checking. Full Screen It will last for 3 seconds. Software version in kind prevail It will last for 3 seconds. - Page 5 Eastron SDM120-M User Manual Export active energy（kwh） Display format：0000.009999.9910000.0 99999.90000.00 Voltage (V) Current (A) Active power (W) Frequency ( F ) Power factor ( PF) Modbus address ( ID) Default: 001 Baud rate Default : 9600bps Zhejiang Eastron Electronic Co.,Ltd.
- Page 6 Eastron SDM120-M User Manual Parity None/even/odd are optional Default: none Software version in kind prevail Set-up Mode To get into Set-up Mode, the user need keep pressing the button for 3 seconds, the meter will enter into the Set-up Mode.
- Page 7 Eastron SDM120-M User Manual the baud rate setting will be stored automatically after 4 seconds and the screen will return to the setting display. Parity setting Under this menu, long press the button for 3 seconds enter to the set-up mode.
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Page 8: Installation
Eastron SDM120-M User Manual Dimensions Installation D I N R a i l Zhejiang Eastron Electronic Co.,Ltd. Web: www.eastron.com.cn... - Page 9 Eastron SDM120-M User Manual Modbus register Map Function code to read input parameters Address Input Register Parameter Modbus Protocol Start Address Hex (Register) Parameters Unit Format Hi byte Low Byte 30001 Volts Float Voltage 30007 Current Amps Float 30013 Active power...
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Page 10: Function Code
Eastron SDM120-M User Manual 310251 Phase 1 line to neutral volts 0.1V Int32 310257 Phase 1 current 0.001A Int32 310263 Phase 1 active power 0.1W Int32 310269 Phase 1 apparent power 0.1VA Int32 310275 Phase 1 reactive power 0.1VAr Int32... - Page 11 Eastron SDM120-M User Manual Write pulse rate index: n = 0 to 6 0- - 0.001 kwh/imp 1--0.01kwh/imp 40023 Pulse 1 Rate Float 2--0.1kwh/imp 3--1kwh/imp Length : 4 byte Data Format : Float Write baud rate for MODBUS Protocol, where: 0 = 2400 baud (default) 1 = 4800 baud.
- Page 12 Eastron SDM120-M User Manual Length : 2 byte Data Format : BCD 0000:0.001kWh/imp(default) 0001:0.01kWh/imp 0002:0.1kWh/imp 463761 Pulse 1 output 0003:1kWh/imp Length : 2 byte Data Format : HEX 0001:mode 1 (total = import) 0002:mode 2 (total = import + export）...
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