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Eastron SDM120-MB User Manual
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Eastron SDM120-MB User Manual

Eastron SDM120-MB User Manual

Single-phase multi-function din rail meter
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Eastron SDM120-MB User Manual
SDM120-MB
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
M-bus conmmunication
Din rail 18mm
45A direct connection
Class C(Class 0.5) / Class B(Class 1)
EN50470-3:2022
Zhejiang Eastron Electronic Co.,Ltd.
User Manual V1.0
Web: www.eastrongroup.com

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Summary of Contents for Eastron SDM120-MB

  • Page 1 Eastron SDM120-MB User Manual SDM120-MB 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  M-bus conmmunication  Din rail 18mm ...

  • Page 2: Risk Reduction

    Eastron SDM120-MB User Manual Risk Reduction Information for Your Own Safety This manual does not contain all of the safety measures operating the equipment (module, device) for different conditions and requirements. However, it does contain information which you must know for your own safety and to avoid damages.
  • Page 3 Eastron SDM120-MB User Manual This device must have a suitable sized Circuit Breaker feeding the Multi Function Energy Meter so it does not  exceed the maximum rated current. The supply wiring of this device shall be suitable sized cable to match the installed circuit breaker.

  • Page 4: Specification

    Eastron SDM120-MB User Manual Application The energy-meters SDM120-MB 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 M-bus communication port for remote reading and monitoring.
  • Page 5 Eastron SDM120-MB 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...

  • Page 6: Operation

    Eastron SDM120-MB 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 7 Eastron SDM120-MB User Manual Press the button, the LCD display will scroll the measurements. Keep pressing the button for 3 seconds, the meter will enter into set-up mode. Total active energy（kWh） Display format：0000.009999.9910000.0 99999.90000.00 Import active energy（kWh） Display format：0000.009999.9910000.0 99999.90000.00 Export active energy（kwh）...
  • Page 8 Eastron SDM120-MB User Manual Frequency ( F ) Power factor ( PF) M-bus primary address ( ID) Default: 001 Baud rate Default : 2400bps Parity None/even/odd are optional Default: none M-Bus secondary address High M-Bus secondary address Low 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 9 Eastron SDM120-MB User Manual M-bus Primary address setting Under this menu, long press the button for 3 seconds enter to the set up mode. The leftmost digit will flash, press the button to increase or decrease number, and then waiting for 2 seconds, the next digit will flash, press the...
  • Page 10 Eastron SDM120-MB User Manual the parity setting will be stored automatically after 2 seconds and the screen will return to the setting display. The user can program the meter parameters by sending correct command via M-bus port. The protocol is M-bus. For the details. Please look at the “M-bus resgiter Map”.
  • Page 11 Eastron SDM120-MB User Manual Wiring Diagram 1 / 2: L-in/ L-out 3 / 4: N 5 / 6 / 7: Pulse Output 2 + / COM / Pulse Output 1 - 9 / 10：Mbus 1/ Mbus 2 Wiring Guide Diameter...
  • Page 12 Eastron SDM120-MB User Manual Dimension Installation Zhejiang Eastron Electronic Co.,Ltd. Web: www.eastrongroup.com...
  • Page 13 Eastron SDM120-MB User Manual M-bus register Map 1. Initialization slave Format: Start C Field A Field Check Sum Stop XX=1 to FF The address field serves to address the recipient in the calling direction,and to identify the sender of information in the receiving direction.The size of this field is one Byte,and can therefore take values from 0 to 255.
  • Page 14 Eastron SDM120-MB User Manual Field--------Control Field, Function Field Field --------Address Field CI Field --------control information field Check Sum------The Check Sum is calculated from the arithmetical sum of the data mentioned above, without taking carry digits into account. B8-------300 B9-------600 BA-------1200...
  • Page 15 Eastron SDM120-MB User Manual 53/73 Example： Master to slave : 68 06 06 68 53 fe 51 01 7a 1e 16 Slave to master :e5 3.2 How to use Broadcast Command to set primary address to 01 Master to slave: 68 06 06 68 53...
  • Page 16 Eastron SDM120-MB User Manual 68H 53/73 4 byte 2 byte 1 byte 1 byte Master to slave: 68 0D 0D 68 53 51 07 79 78 56 34 12 24 40 01 02 9D 16 Slave to master:e5 5. How to read out of Energy information 5.1 Use primary address 01 to read Energy information...
  • Page 17 Eastron SDM120-MB User Manual 78 56 34 12 123456.78kwh Current import active energy DIF: 8digit BCDFIE，Current Value VIF: 10w (0.01Kw ) 78 56 34 12 123456.78kwh Current export active energy DIF: 8digit BCDFIECurrent Value VIF: 10w (0.01Kw ) 78 56 34 12 123456.78kwh...
  • Page 18 Eastron SDM120-MB User Manual Master to slave : 68 03 03 68 53 b1 05 16 Slave to master: Variable data structure (instantaneous electrical information) If the primary address is 01 then XX=01 6.2 How to use Secondary Address to read out the instantaneous electrical information...
  • Page 19 Eastron SDM120-MB User Manual current DIF: 6digit BCD VIF:fd VIFE: 1mA(xxx.xxxA) 56 34 12 123456mA(123.456A) Reserve DIF: 6digit BCD VIF:fd VIFE: 1mA(xxx.xxxA) 00 00 00 Reserve DIF: 6digit BCD VIF:fd VIFE: 1mA(xxx.xxxA) 00 00 00 Reserve DIF: 6digit BCD VIF:fd VIFE: 1mA(xxx.xxxA)
  • Page 20 Eastron SDM120-MB User Manual 00 00 00 DIF: 4digit BCD Reserve VIF:fd VIFE: dimensionless / no VIF 00 00 00 DIF: 4digit BCD Frequency VIF:fd VIFE: dimensionless / no VIF 00 50 50.00 z 7. How to read password Start...
  • Page 21 Eastron SDM120-MB User Manual 4 bytes min-min-s-min Example:(Meter address is 01) Master to Slave：68 09 09 68 53 FE 51 30 01 60 01 05 06 3F 16 Slave to Master：E5 10. Read Demand interval、slide time、Display time、LED time Start Start...
  • Page 22 Eastron SDM120-MB User Manual Start L Field L Field Start C Field data Check Stop Field Field addr 01/02/03 Example:(Meter address is 01) Master to Slave:68 04 04 68 11 01 0A 1d 16 Slave to Master:e5 The red-lighted represents the measurement mode...
  • Page 23 Eastron SDM120-MB User Manual 15. Read the constant of Pulse 1 Start L Field L Field Start C Field Check Stop Field Field addr Example:(Meter address is 01) Master to Slave: 68 03 03 68 11 01 12 24 16...
  • Page 24 Eastron SDM120-MB User Manual Field Field Field addr 00/01/02 Example:(Meter address is 01) Master to Slave: 68 04 04 68 11 01 15 27 16 Slave to Master: e5 The red-lighted represents the parity bit of MBUS 00： none 01： even 02：...
  • Page 25 Eastron SDM120-MB User Manual No. 52, Dongjin Road, Nanhu, Jiaxing, Zhejiang, China Tel: +86-573-83698881 Fax: +86-573-83698883 Email: sales@eastrongroup.com www.eastrongroup.com Zhejiang Eastron Electronic Co.,Ltd. Web: www.eastrongroup.com...

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