Definition Of Rj45 Port Pin; System Diagram - Pylontech Force-H2-V2 Manual

Communication Terminal (RS485 / CAN / RS232/Link0/Link1)
RS485 Communication Terminal: (RJ45 port) follow MODBUS 485 protocol, for
communication between battery system and inverter.
CAN Communication Terminal: (RJ45 port) follow CAN protocol, for communication
between battery system and inverter.
RS232 Communication Terminal: (RJ45 port) for manufacturer or professional
engineer to debug or service. The Pin1&2(12Vdc+/-) is dedicated for Sunny Boy
Storage Enable Line design.
Link0/Link1 Communication Terminal: （RJ45 port）for multi-groups operation
using only, connecting from first BMS Link 1 to second BMS Link 0, then from second
BMS Link 1 to third BMS link 0(if has), all the way to the last BMS Link 0. The BMS
with Link Port 0 EMPTY is defined as the Master string, which further communication
with the inverter or upper controller.
For multi-groups operation, please firstly make sure the communication cable
between multiple BMSs are properly connected between Link 1 and Link 0, before
the start up.

Definition of RJ45 Port Pin

No.
1
2
3
4
5
6
7
8
* The Pin1&2(12Vdc IN+/ 12Vdc IN-) is dedicated for SMA Enable Line design.
2.3

System Diagram

CAN RS485
--- ---
GND ---
--- ---
CANH ---
CANL ---
--- ---
--- RS485A
--- RS485B
RS232
12Vdc IN+*
12Vdc IN-*
TX
---
---
RX
---
GND
17