sol-ark 12K - Modbus;Rj45 Application Note

October 21
st
, 2021 42
Batt Capacity: 40Ah x #Parallel_Batteries
(4 Parallel = 160Ah, 6 = 240Ah, 8 = 320Ah)
Max A Charge: 160A w/ 4 Batteries, 185A w/ 6+
Max A Discharge: 160A w/ 4 Batteries, 185A w/ 6+
Max A Grid Charge: 160A w/ 4 Batteries, 185A w/ 6+
TEMPCO: 0mV/C/Cell
BMS Lithium Batt: 03 (eGauge) / 00 (Namaka Box)
Float V: 55.2V
Absorption V: 55.2V
Equalization V: 55.2V
Equalization Days: 30
Equalization Duration: 1 Hours (tops off battery)
Recommended Shutdown V / Percentage: 47.0V & 20%
Recommended Low Batt V / Percentage: 49.0V & 30%
Recommended Restart V / Percentage: 52.0V & 40%
Battery Resistance: 5mOhms
Battery Charge Efficiency: 99%
Battery Empty Voltage: 46V
Dyness B4850 Battery Module
Batt Capacity: 50Ah x #Parallel_Batteries
Max A Charge: 50A (25A for life) x #Parallel_Batteries
Max A Discharge: 50A x #Parallel_Batteries
Max A Grid Charge: 50A x #Parallel_Batteries
TEMPCO: 0mV/C/Cell
BMS Lithium Batt: 01
Float V: 53.8V
Absorption V: 54.0V
Equalization V: 54.0V
Equalization Days: 30
Equalization Duration: 1 Hours (tops off battery)
Recommended Shutdown V / Percentage: 47V & 20%
Recommended Low Batt V / Percentage: 48V & 30%
Recommended Restart V / Percentage: 49V & 40%
Battery Resistance: 5mOhms
Battery Charge Efficiency: 99%
Battery Empty Voltage: 46V
MODBUS/RJ45 Application Note
Use the information below at your own risk; the warranty will not cover any damage caused by the improper use of
the communications protocols. Read-Only Modbus Map available upon request at support@sol-ark.com
• If you set Lithium batt = 03, I.E., Blue Ion and EGauge
(MODBUS)
• If you set Lithium batt = 02, N/A
• If you set Lithium batt = 01, you get a response for batt
communication.
• If you set Lithium batt = 00, the inverter is a slave, and
the external device is the Master. I.E., Discover Lynk (CANBUS)
Time
Watts
SOC
GridCharge
1:00AM
8000*Par_Batts
40%
5:00AM
8000*Par_Batts
40%
9:00AM
8000*Par_Batts
40%
1:00PM
8000*Par_Batts
40%
4:00PM
8000*Par_Batts
40%
9:00PM
8000*Par_Batts
40%
Time
Watts
SOC
GridCharge
1:00AM
2400*Par_Batts
40%
5:00AM
2400*Par_Batts
40%
9:00AM
2400*Par_Batts
40%
1:00PM
2400*Par_Batts
40%
5:00PM
2400*Par_Batts
40%
9:00PM
2400*Par_Batts
40%
These settings will charge the batteries off solar only.
Discharge the batteries down to a maximum of 40% full.
Limited To Home mode will not sell to the grid from the
batteries (only the home will use battery power). The
100% time slot is to ensure that the batteries are
properly cycled each day.
These settings will charge the batteries off solar only.
Discharge the batteries down to a maximum of 40% full.
Limited To Home mode will not sell to the grid from the
batteries (only the home will use battery power).
MODBUS
Pin 1 or 8 is RS485-B (Data -)
Pin 2 or 7 is RS485-A (Data +)
Pin 3 or 6 is GND
Baud 9600
8bits data
One stop bit, no parity
Does not require termination
CANBUS
Pin 2 is Ground
Pin 4 is CAN High
Pin 5 is CAN Low
Find our full list of currently supported battery
communications at www.sol-ark.com/support.