Page
44
to
62
Definition
PIN 1
RS232TX
PIN 2
RS232RX
PIN 3
RS485B
PIN 4
NC
PIN 5
RS485A
PIN 6
CANH
PIN 7
CANL
PIN 8
GND
Appendix B: BMS Communication Installation
1. Introduction
If connecting to lithium battery, it is recommended to purchase a custom-made RJ45 communication cable.
Please check with your dealer or integrator for details.
This custom-made RJ45 communication cable delivers information and signal between lithium battery and the
inverter. These information are listed below:
Re-configure charging voltage, charging current and battery discharge cut-off voltage according to the
lithium battery parameters.
Have the inverter start or stop charging according to the status of lithium battery.
2. Pin Assignment for BMS Communication Port
1.
AOESS48-LFP4100
Lithium Battery Communication Configuration
①
Dial switch address: Used to set the address bit of battery module when multiple batteries are wired in
parallel.
No.
Dial switch address
RS485
CAN
#1
#2
#3
#4
#5
#6
0
OFF
OFF
OFF
OFF
OFF
OFF
Pack 0
Invalid
1
ON
OFF
OFF
OFF
OFF
OFF
Pack 1
Master
2
OFF
ON
OFF
OFF
OFF
OFF
Pack 2
Slave
3
ON
ON
OFF
OFF
OFF
OFF
Pack 3
Slave
4
OFF
OFF
ON
OFF
OFF
OFF
Pack 4
Slave
5
ON
OFF
ON
OFF
OFF
OFF
Pack 5
Slave
6
OFF
ON
ON
OFF
OFF
OFF
Pack 6
Slave
7
ON
ON
ON
OFF
OFF
OFF
Pack 7
Slave
8
OFF
OFF
OFF
ON
OFF
OFF
Pack 8
Slave
9
ON
OFF
OFF
ON
OFF
OFF
Pack 9
Slave