Introduction Of Bcu; Bcu Interface Introduction; Battery Status Indicated By Led - BYD Battery-Box L 3.5(AU) User Manual

5.3 Introduction of BCU

BCU, the management unit, is one of the main component of the energy storage system, it
communicates upward with inverters and downward with batteries by collecting batteries
information and send them to inverters to make sure the system works normally.

5.3.1 BCU interface introduction

Position Designation
A Power button/LED indicator
B Handle
Rubber plug
C
Gland for P+ P- & Grounding cables
D
Bolt
E
F Gland for CAN cables of Inverter and BCU
Parameters of Wifi module
Catalog
Wireless parameters
Distance of
communication
Software
parameters

5.3.2 Battery status indicated by Led

The battery status can be indicated by the Led, please refer to the following table for details.
BYD Battery-Box LV User Manual
Parameter
Working frequency
Transmit power
Wireless communication
Configuration
Safety
Wireless network type
Encryption type
Network protocol
Terminals on the right
802.11b: +16 +/-2dBm (@11Mbps)
802.11g: +14 +/-2dBm (@54Mbps)
802.11n: +13 +/-2dBm (@HT20, MCS7)
distance Open air, no shelter from 100m
WEP/WPA-PSK/WPA2-PSK
WEP64/WEP128/TKIP/AES
IPv4,TCP/UDP/FTP/HTTP
Value
2.412GHz-2.4835GHz
AT+Instruction set
WiFi point to point
Web server
STA/AP
8