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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. Lithium Battery Communication Configuration

PYLONTECH

ADD Switch: There are 4 ADD switches are to define different baud rate and battery group address. If switch

position is turned to bottom for “OFF” position, it means “0”. If switch position is turned to upper for “ON”

position, it means “1”.

Dip 1 is “ON” to represent the baud rate 9600.

Dip 2, 3 and 4 are to set up battery group address.

Dip switch 2, 3 and 4 on master battery (first battery) are to set up or change the group address.

NOTE: “1” is upper position and “0” is bottom position.

Dip 1

Dip 2

Dip 3

Dip 4

Group address

1: RS485

baud rate=9600

Restart to take

effect.

Single group only. It’s required to set up master battery

with this setting and slave batteries are unrestricted.