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Appendix II: 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
Dip Switch: There are 4 Dip Switches that sets different baud rate and battery group address. If switch position
is turned to the “OFF” position, it means “0”. If switch position is turned to the “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
0
0
0
Single group only. It’s necessary to set up master battery with this
setting and slave batteries are unrestricted.
1
0
0
Multiple group condition. It’s necessary to set up master battery on the
first group with this setting and slave batteries are unrestricted.
0
1
0
Multiple group condition. It’s necessary to set up master battery on the
second group with this setting and slave batteries are unrestricted.
1
1
0
Multiple group condition. It’s necessary to set up master battery on the
third group with this setting and slave batteries are unrestricted.
0
0
1
Multiple group condition. It’s necessary to set up master battery on the
fourth group with this setting and slave batteries are unrestricted.
1
0
1
Multiple group condition. It’s necessary to set up master battery on the
fifth group with this setting and slave batteries are unrestricted.
NOTE: The maximum groups of lithium battery is 5 and for maximum number for each group, please check
with battery manufacturer.
