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spark_abacus [2017/01/23 18:20] – add SDM120 kingkevinspark_abacus [2017/01/23 19:34] – adjust summary kingkevin
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-The spark abacus is a custom electricity meter with wireless data logging capability. +The spark abacus is a custom electricity meter monitoring system. 
-It's a follow-up to the [[spark_counter|spark counter]] for a 3-phase 4-wire mains electricity power distribution installation.+It's a follow-up of the [[spark_counter|spark counter]], but for a 3-phase 4-wire mains electricity power distribution installation.
  
 ====== electricity meters ====== ====== electricity meters ======
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 The [[http://www.eastrongroup.com/|Eastron]] [[http://eastrongroupco.hk02.057321.com/productsview/14.html|SDM120-Modbus]] is a slim 1-phase 2-wire electricity meter. The [[http://www.eastrongroup.com/|Eastron]] [[http://eastrongroupco.hk02.057321.com/productsview/14.html|SDM120-Modbus]] is a slim 1-phase 2-wire electricity meter.
 +
 +{{:spark_abacus:sdm120-02.jpg?0x200|SDM120 front}}
 +{{:spark_abacus:sdm120-01.jpg?0x200|SDM120 side}}
 +{{:spark_abacus:sdm120-03.jpg?0x200|SDM120 board back}}
 +{{:spark_abacus:sdm120-04.jpg?0x200|SDM120 board side}}
 +{{:spark_abacus:sdm120-05.jpg?0x200|SDM120 board side}}
  
 Be aware as numerous SDM120 models exist, combining following options: Be aware as numerous SDM120 models exist, combining following options:
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 The [[http://eastrongroupco.hk02.057321.com/data/uploads/Eastron_SDM120-Modbus_protocol_V2_3_(1).pdf|corresponding Modbus document]] ({{:spark_abacus:sdm120-modbus_protocol_v2.1.pdf |older v2.1}}) lists the registers containing the measurements (input registers) and configuration (holding registers). The [[http://eastrongroupco.hk02.057321.com/data/uploads/Eastron_SDM120-Modbus_protocol_V2_3_(1).pdf|corresponding Modbus document]] ({{:spark_abacus:sdm120-modbus_protocol_v2.1.pdf |older v2.1}}) lists the registers containing the measurements (input registers) and configuration (holding registers).
 This document also explains the Modbus protocol, but I rather recommend to read the one for the [[http://eastrongroupco.hk02.057321.com/data/uploads/Eastron_SDM630MV_CT_protocol_V1_0_.pdf|SDM630]] since it contains more information, most importantly the timing between messages. This document also explains the Modbus protocol, but I rather recommend to read the one for the [[http://eastrongroupco.hk02.057321.com/data/uploads/Eastron_SDM630MV_CT_protocol_V1_0_.pdf|SDM630]] since it contains more information, most importantly the timing between messages.
 +
  
 ====== EPS8266 ====== ====== EPS8266 ======
spark_abacus.txt · Last modified: 2024/01/07 17:49 by 127.0.0.1

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