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openenergymonitor / emonhub

Python service linking and decoding input to MQTT & Emoncms
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Minimalmodbus add rid175 #179

Open dave-mc opened 2 years ago

dave-mc commented 2 years ago

Updated minimalmodbusinterfacer to add support for RI-D175 single phase modbus meter This is a low cost 45A meter widely available from electrical wholesalers (i.e. CEF) mechanically it has some advantages over the widely used SDM120 as it allows up to 10mmsq cables and provides connections for 2 neutrals so does not require a separate 'T' connection in the neutral. Data is returned from the meter as a long with bcd coded data.

Data Sheets attached below RI_Data_Sheet_RI-D175_MID_01_12_20.pdf RI-D175-C-COM-Modbus protocol-V02.pdf

dave-mc commented 1 year ago

I have updated some of the scaling factors to get the correct results from the RID175 meter