Outback Power Systems AXS Port SunSpec Modbus Interface Owners Manual - Manual (Page 12)

Operation
10 900-0138-01-00 Rev B
Charge Controller Block:
This block is usable for most OutBack charge controllers with the exception of the OutBack MX60. It is
a status-only block and does not contain command or control fields.
Table 2 Charge Controller Block
Start End Size R/W Name Type Units
Scale
Factor Contents Description
0 0 1 R C_SunSpec_DID uint16 N/A N/A 64111
Uniquely identifies this as a SunSpec Basic Charge
Controller
1 1 1 R C_SunSpec_Length uint16 Registers N/A 23 Length of block in 16-bit registers
2 2 1 R CC_port_number uint16 N/A N/A 0-10 Port number on OutBack network
3 3 1 R CCconfig_Voltage_SF int16 N/A N/A -1 DC Voltage Scale Factor
4 4 1 R CCconfig_Current_SF int16 N/A N/A 0 DC Current Scale Factor
5 5 1 R CCconfig_Power_SF int16 N/A N/A 0 DC Power Scale Factor
6 6 1 R CCconfig_AH_SF int16 N/A N/A 0 DC Amp Hours Scale Factor
7 7 1 R CCconfig_KWH_SF int16 N/A N/A -1 DC kWH Scale Factor
8 8 1 R CC_Batt_Voltage_SF uint16 Volts
Voltage
_SF
Measured Battery Voltage
9 9 1 R CC_Array_Voltage_SF uint16 Volts
Voltage
_SF
Measured DC Source Voltage
10 10 1 R CC_Batt_Current_SF uint16 Amps
Voltage
_SF
Measured Battery Current
11 11 1 R CC_Array_Current_SF uint16 Amps
Current
_SF
Measured DC Source Current
12 12 1 R CC_Charger_State uint16 Enumerated N/A Descriptive 0 = Silent; 1 = Float; 2 = Bulk; 3 = Absorb; 4 = EQ
13 13 1 R CC_Watts uint16 Watts
Power
_SF Measured
CC Wattage Output
14 14 1 R
CC_Todays_Min_Battery_
Volts
uint16 Volts
Voltage
_SF
Measured Minimum Voltage for battery today
15 15 1 R
CC_Todays_Max_Battery_
Volts
uint16 Volts
Voltage
_SF
Measured Maximum Voltage for battery today
16 16 1 R CC_VOC uint16 Volts
Voltage
_SF
Measured Last Open Circuit Voltage (array)
17 17 1 R CC_Todays_Peak_VOC uint16 Volts N/A Measured Highest VOC today
18 18 1 R CC_Todays_kWH uint16 KWH
KWH
_SF
Measured Daily accumulated kilowatt-hours output
19 19 1 R CC_Todays_AH uint16 AH AH_SF Measured Daily accumulated amp-hours output
20 20 1 R CC_Lifetime_kWH_Hours uint16 KWH N/A Measured Lifetime Total kilowatt hours
21 21 1 R CC_Lifetime_kAmp_Hours uint16 Amps
KWH_
SF
Measured Lifetime Total kiloamp-hours
22 22 1 R CC_Lifetime_Max_Watts uint16 Watts
Power_
SF
Measured Lifetime Maximum Wattage
23 23 1 R
CC_Lifetime_Max_Battery_
Volts
uint16 Volts
Voltage
_SF
Measured Lifetime Maximum Battery Voltage
24 24 1 R CC_Lifetime_Max_VOC uint16 Volts
Voltage
_SF
Measured Lifetime Maximum VOC
Charge Controller Configuration Block:
This block always accompanies the Charge Controller Block. It is usable for most OutBack charge
controllers with the exception of the OutBack MX60. It contains command and control fields for the
charge controller, as well as vendor-specific status fields.
Table 3 Charge Controller Configuration Block
Start End Size R/W Name Type Units
Scale
Factor Contents
Description
0 0 1 R C_SunSpec_DID uint16 N/A N/A 64112 Vendor Extension for OutBack Charge Controllers
1 1 1 R C_SunSpec_Length uint16 Registers N/A 64 Length of block in 16-bit registers
2 2 1 R CCconfig_port_number uint16 N/A N/A 0-10 Port number on OutBack network
3 3 1 R CCconfig_Voltage_SF int16 N/A N/A -1 DC Voltage Scale Factor
4 4 1 R CCconfig_Current_SF int16 N/A N/A 0 DC Current Scale Factor
5 5 1 R CCconfig_Hours_SF int16 N/A N/A -1 Time in Hours Scale Factor
6 6 1 R CCconfig_Power_SF int16 N/A N/A 0 Power Scale Factor
7 7 1 R CCconfig_AH_SF int16 N/A N/A 0 Amp Hours Scale Factor
8 8 1 R CCconfig_KWH_SF int16 N/A N/A -1 DC kWH Scale Factor
9 9 1 R CCconfig_Faults uint16 Bitfield N/A Descriptive
CC Error Flags: High VOC, Over temp, Shorted
Battery Temp Sensor
10 10 1 R/W CCconfig_Absorb_Volts uint16 Volts
Voltage
_SF
Programmable Absorb Voltage Target