SunSaver MPPT MODBUS® Specification - Morningstar Corporation

SunSaver MPPT MODBUS Specificationv05Charge_state[18][0x0011] ( ).Reports the charge state.Value Charge State0 START1 NIGHT_CHECK2 DISCONNECT3 NIGHT4 FAULT5 BULK_CHARGE6 ABSORPTION7 FLOAT8 EQUALIZEArray_fault[19][0x0012] (bit-field). Solar input self-diagnostic faults.Reports faults identified by self diagnostics. Each bit corresponds to a specific fault.Array Faults TableBit Fault0 overcurrent1 FETs shorted2 software bug3 battery HVD4 array HVD5 EEPROM setting edit (reset required)6 RTS shorted7 RTS was valid, now disconnected8 local temp. sensor failed9 Fault 1010 Fault 1111 Fault 1212 Fault 1313 Fault 1414 Fault 1515 Fault 16Vb_f[20][0x0013] (V). battery voltage, slow filtered.Voltage measured directly at the battery connection on the SunSaver MPPT.Vb_ref[21][0x0014] (V). Reference Voltage.Target voltage to which the battery will be charged. This value is temperature compensated.http://www.morningstarcorp.com 10/26 23 April 2008