SunSaver MODBUS Specifications

Variables and Definitions
Variable_name
[Logical Address][PDU Address] (Units). Short description.
Definition.
Read Holding and Read Input Registers
Located in processor RAM, updated continuously.
Adc_vb_f
[09][0x0008] (V). battery voltage, filtered.
Voltage measured directly at the battery connection on the SunSaver MPPT.
Adc_va_f
[10][0x0009] (V). solar input voltage.
Va is the terminal voltage of the solar input connection.
Adc_vl_f
[11][0x000A] (V). load voltage.
Vl is the terminal voltage of the load output connection.
Adc_ic_f
[12][0x000B] (A). battery charge current, filtered.
Charging current to the battery as measured by on-board shunt.
Adc_il_f
[13][0x000C] (A). load current, filtered.
Load current to the systems loads as measured by on-board shunt.
T_hs
[14][0x000D] (C). Heatsink Temperature.
Sunsaver MPPT Heatsink temperature. Reported in degrees C.
T_batt
[15][0x000E] (C). Battery Temperature.
Battery temperature as measured by the ambient temperature sensor or the optional RTS (if connected).
Reported in degrees C.
T_amb
[16][0x000F] (C). Ambient Temperature.
Ambient temperature as measured by the ambient temperature sensor. Reported in degrees C.