I'd try the 3xxx range and see how the returned data corresponds to values displayed and attempt to ascertain the data format that way.Ī 32 bit format can be a long integer or a floating point real value. Onsite Calibration Verification - Calibration LED, Heart beat LED for communication status & meter healthiness. Parameters - EB & DG side Power & Energy parameters, Runhrs, OnHrs & Optional Demand parameters. It isn't clear to me what you're reading at D1070 through D1085 (the D means?) The EM6438 EM6436 Dual Source Energy Meter are for the measurement of power and energy from the alternate source system. The irregular register spacing between the instantaneous values, 4 between KW and PF, 2 between PF and V, 4 between V and A leaves those formats open to speculation. I suspect that the totals kWh and KVARh are floating point values. Supported function codes are not listed but apparently 03 or 04 works, because you got replies. I wonder if its a truncated list, because there is mention of considerably more totalized/integrated data than appears on the register list. Their table lists only 7 variables available via Modbus, starting with Has whatever limited information is provided on their Modbus RTU implementation.
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