SunSaver MPPT MODBUS Document

TriStar MPPT MODBUS Document v10

http://www.morningstarcorp.com 9/26 05 Dec 2011

Filtered ADC

[25][0x0018] (V). battery voltage, filtered.

Battery voltage used for regulation by the TS-MPPT. This voltage will be the same as the Battery Sense

voltage if the sense connections are connected and valid. Otherwise, this value is the same as Vb_term

voltage.

Vb_term

[26][0x0019] (V). battery terminal voltage, filtered.

Voltage measured directly at the battery power connections on the TriStar MPPT.

Vb_sense

[27][0x001A] (V). battery sense voltage, filtered.

Voltage measured by the Battery Sense connections on the TriStar MPPT.

[28][0x001B] (V). solar input voltage, filtered.

Va is the terminal voltage of the solar input connection.

[29][0x001C] (A). battery charge current, filtered.

Charging current to the battery as measured by on-board shunts.

[30][0x001D] (A). solar input current, filtered.

Input current from the solar array.

NOTE: Input current is not measured by precision shunts and may differ from the actual input current by

+/- 20%.

Vp12

[31][0x001E] (V). 12 volt supply.

12 Volt power supply voltage.

Vp3

[32][0x001F] (V). 3 volt supply.

3 Volt power supply voltage.