SunSaver MPPT MODBUS Document

TriStar MPPT MODBUS Document v10
http://www.morningstarcorp.com 14/26 05 Dec 2011
V_target
[52][0x0033] (V). Target Voltage.
Voltage to which the battery will be charged at any given time. This value changes with each charge
stage and is temperature compensated.
Ahc_r_HI / Ahc_r_LO
[53,54][0x0034, 0x0035] (ah).Charge amp-hours (reset-able counter).
Reports total solar amp-hours since last ah reset.
Ahc_t_HI / Ahc_t_LO
[55,56][0x0036, 0x0037] (ah).Charge amp-hours (Total cumulative counter).
Reports total solar amp-hours since last ah reset.
kWhc_r
[57][0x0038] (kWh).Charge kilowatt-hours (reset-able counter).
Reports total solar kilowatt-hours since last ah/kWh reset.
kWhc_t
[58][ 0x0039] (kWh).Charge kilowatt-hours (total counter).
Reports total solar kilowatt-hours.
MPPT
Power_out
[59][0x003A] (W). Charge output power.
Output power to the battery.
Power_in
[60][0x003B] (W). Array input power.
Input power from the solar array. Input current is not measured by precision shunts, therefore the
reported input power may have significant error.
Sweep_Pmax
[61][0x003C] (W). Maximum array power.
Maximum power output of the solar array found during last sweep.