SA-15K Install Guide and Owner Manual

August 19
th
, 2022 45
MODBUS/RJ45 Application Note
BMS Lithium Batt Modes (Subject to Change):
00: CANBus Battery mode – Inverter also acts a ModBus slave with slave ID set by “ModBus SN Setting” (Pg. 32)
01: Storz ModBus Protocol
02: Pylontech ModBus Protocol
03: Old Blue Ion + eGauge / Polarium ModBus Protocol
04: Fortress Power ModBus Protocol
05: Kilovault HAB ModBus Protocol
06: Battery or Battery Controller is ModBus master and writes battery data to inverter’s BMS registers (not currently in
use).
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 [e-mail]
Incorporating 3
rd
Party ModBus Devices:
If your device utilizes BMS Lithium Batt 00, you need to set the inverter Modbus SN to 01. The default ModBus SN is 00.
If you have more than one inverter, then follow pg. 45 to ensure proper programming.
Combined RS-485 and CANBus
Pin 1 or 8 is RS-485 B- (Data -)
Pin 2 or 7 is RS-485 A+ (Data +)
Pin 4 CAN High
Pin 5 CAN Low
Pin 6 is GND
Find our full list of currently supported battery
communications
www.sol-ark.com/battery-partners
Our Battery Communications Integration Guide
can also be found here
www.sol-ark.com/support
Baud 9600
8bits data
One stop bit, no parity
Does not require
termination