Technical Manual

84 D C U M a i n t e n a n c e a n d O p e r a t i o n M a n u a l
Power
Supply
H0HW=F On Reset X X
Provides the DCU 2 power board firmware revision.
Always reads 0 for DCU 2+.
Power
Supply
H0SN= On Reset X X
Power Supply Serial Number. Only valid for DCU2s. For
DCU2+, 0 value returned.
Power
Supply
INPUTCur=1.36 Hourly X Current in amps) (IIN) provided to DCU 2+ power board.
Power
Supply
INPUTV=12.36 Hourly X Battery Voltage (Vbat) for DCU 2+.
Power
Supply
LowPwrCompsumption=0450 Daily X 03.10.0012
Low Power Mode Average Power Consumption in
milliWatts. A standard DCU 2+ configuration typically
consumes about 450mW in low power mode.
Power
Supply
nonWinterThresholdFloor=20% Daily X 03.10.0012
Minimum SoC Threshold Setting for Non-Winter Season.
This value sets a battery minimum State-of-Charge level
that the system can operate normally. This value can
override the Power Management System. For this
reason, recommend this value be set to less than 20%
SoC.
Power
Supply
nonWinterThresholdSoc=25% Daily X 03.10.0012
Current SoC Threshold for Non-Winter Season: Threshold
at which the DCU 2+ will enter low power mode. This
value will vary based on DCU 2+ configuration. This is
value is automatically calculated based on GPS-obtained
coordinates.
Power
Supply
SoC=72.1%,8.207,6.521 Hourly X
Battery State-of-Charge Estimate: Battery state of
charge calculated by the Power Management System.
The value is reported hourly. Valid range of 0 to 100%.
For AC systems, the SoC should be steady and above
89%. For solar DCU 2+, the SoC will increase when
sunlight available and will discharge when sunshine not
available.
Power
Supply
SPSCCur=1.36 Hourly X
This message normally occurs hourly (except at midnight
GMT). The message value indicates the battery charging
current sampled the previous hour.
Power
Supply
SYSTEMV=12.00 Hourly X
Regulated System Voltage (Vsys) provided to DCU 2+
electronics.
Power
Supply
Temp=-011.25C Hourly X
This message occurs hourly providing the internal DCU 2
temperature in degrees Celsius sampled the previous
hour.
Power
Supply
Temp=-011.25C Hourly X
DCU 2+ power board charging chip die temperature in
Celsius. Maximum rated operating junction temperature
for power board charging chip die temperature is 125C.
Example observations show: no battery connected
~15-20C rise over ambient, solar input current of 0.5A or
AC float charge ~20-25C rise over ambient, AC full
charge current ~35-40C rise over ambient.
Source Message Frequency DCU 2 DCU 2+
Mainboard
Firmware
Description