SunSaver MPPT MODBUS Document

TriStar MPPT MODBUS Document v10
http://www.morningstarcorp.com 11/26 05 Dec 2011
Heavily filtered charging current value.
Vb_min
[41][0x0028] (V). minimum battery voltage.
Long term minimum battery voltage. Resets when Ah(resettable) is reset.
Vb_max
[42][0x0029] (V). maximum battery voltage .
Long term maximum battery voltage. Resets when Ah(resettable) is reset.
hourmeter_HI / hourmeter_LO
[43, 44][0x002A, 0x002B] (hrs).hour meter counter.
Reports total hours of operation.
Faults
[45][0x002C] (bit-field). TS-MPPT self-diagnostic faults.
Reports faults identified by self diagnostics. Each bit corresponds to a specific fault.
Faults Table
Bit
Fault
0
overcurrent
1
FETs shorted
2
software bug
3
battery HVD
4
array HVD
5
settings switch changed
6
custom settings edit
7
RTS shorted
8
RTS disconnected
9
EEPROM retry limit
10
Reserved
11
Slave Control Timeout
12
Fault 13
13
Fault 14
14
Fault 15
15
Fault 16
Example:
Bit 0 is the LSB
Faults = 0x0013 indicates the following faults have been detected:
[bit 0] overcurrent
[bit 1] MOSFETs shorted
[bit 4] array HVD