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FLEXnet DC Data Stream
16
900-0137-01-00 Rev A
Definition of Data Stream Items for the FLEXnet DC
Port Number : Indicates the designation of the OutBack HUB port used by the FLEXnet DC. The addresses will
be 01 to 10 and will correspond to the appropriate numbered port.
Device Type : Indicates the presence of a FLEXnet DC battery monitor. This device type is always 4.
Shunt Current : Measures the DC current delivered across a specified shunt. The range is 0009 to 9999,
incorporating one decimal place. For example, a current of 112.3 amps will be sent as ‘1123’. Separate
character strings report the status of up to three shunts (A, B, and C), if present).
Extra Data Identifier:
This is an ASCII
expression of an 8-bit binary string,
displayed in values ranging from 000 to
255. Bit 1 through 7 are the only bits
used in the string. The 8th bit is not
used. The full range of numbers is also
not used.
FLEXnet DC Battery Voltage : The DC
voltage as measured at the batteries by
the FLEXnet DC’s sense wires. The range
is 000’ to 999, incorporating one decimal
place. For example, a voltage of 24.8 Vdc
will be sent as ‘248’.
Battery State of Charge : The state of
charge as determined by the
programmed parameters of the FLEXnet
DC. The range is 0 to 100 percent.
Shunt Enable Flags
: Indicates whether
shunts A through C are enabled (a state
of 1) or disabled (a state of 0).
Status Flags : This is an ASCII expression
of an 8-bit binary string, displayed in
values ranging from 000 to 255. Each bit
is a flag for a different function
as shown in Table 20.
Relay Mode indicates whether the
AUX relay is open (a state of 0) or closed (a state of 1).
Relay State indicates whether the function has been set to
manual mode (a state of 0) or automatic mode (a state of 1).
EXAMPLE : A returned value of 009 would indicate that the
FLEXnet DC charge parameters have been met and that the
values are negative for Shunt 1.
Battery Temperature : The temperature of the batteries as
reported by the Remote Temperature Sensor (RTS). The range
is 00 to 70. This represents a range of degrees Celsius that is ten
less than the value shown. The result is a range of –10°C to 60°C.
A value of 99 indicates that no RTS is installed.
Checksum
: ‘000’ to ‘999’ This is a simple additive checksum of the decimal values of the Status page.
EXAMPLE:

00,4,0000,0126,0000,02,00023,287,099,001,00,33,062

0+0+4+0+0+0+0+0+1+2+6+0+0+0+0+0+2+0+0+0+2+3+2+8+7+0+9+9+0+0+1+0+0+3+3=062
Table 19 Extra Data Identifier for FNDC
Bit: 7 extra data numeric sign
0: positive value
1: negative value
Bits: 1-6
0: Accumulated AH
1
shunt ‘A’
1: Accumulated kWH
2
shunt ‘A’
2: Accumulated AH shunt ‘B’
3: Accumulated kWH
2
shunt ‘B’
4: Accumulated AH shunt ‘C’
5: Accumulated kWH
2
shunt ‘C’
6: Days since full
3
7: Today’s minimum SOC
4
8: Today’s net input AH
1
9: Today’s net output AH
1
10: Today’s net input kWH
2
11: Today’s net output KWH
2
12:
5
Charge factor corrected Net battery AH
1
13:
5
Charge factor corrected Net battery kWH
2
14-35: Reserved
1
AH values: 00000 to 65535 (0 to 65535 amp-hours)
2
kWH values: 00000 to 65535 (000.00 to 655.35 kilowatt-hrs.)
3
Days since full output: 00000 to 09999 (0.0 to 999.9)
4
Minimum SOC output: 00000 to 00100 (0 to 100 percent)
5
MATE version 4.04 and above
Table 20 Status Flag
Bit Value Status
1 1 Charge parms met
2 2 Relay Mode
3 4 Relay State
4 8 Shunt A values are negative
5 16 Shunt B values are negative
6 32 Shunt C values are negative