
Electrical Connection
28
ESS Inverter User Manual
4.6
Communication Connection
There are communication interfaces in the communication port on the bottom of the inverter
as show below
:
Interface
Descriptions
USB
For fast firmware upgrade.
PARAL
4-Pin interface for parallel communication
A matched resistance switch for parallel communication
RS485
4-Pin interface for RS485 communication
DRM
Demand response mode for Australia application
CT/METER
For Meter communication or Grid current sense.
BMS
Lithium battery communication interface
9-Pin
GEN
Generator control
DO
Dry contact control (reserved)
RMO
Remote off control
NTC
Temperature sensor terminal of lead-acid battery
GPRS/WIFI/LAN
For GPRS/WIFI/LAN communication.