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Communication interface definition
BMS PIN Definition
Communication interface between inverter and battery is RS485 or CAN with a RJ45
connector.
The wiring sequence of the crystal head conforms to the 568B standard: orange
white, orange, green white, blue, blue white, green, brown white and brown.
DRY_IO (RJ45 PIN) Definition
Reserved dry contact interface of the inverter.
WiFi And GPRS Connection(optional)
Inverter provides a WiFi port which can collect data from inverter and transmit it to
monitoring-website by WiFi.
Step1. Plug Wifi into “COM” port at the bottom of the inverter.
Step2. Build the connection between the inverter and router.
Step3. Create a user account online. (Please check the WiFi user manual for more
details).
DRM Connection
DRM is provided to support several demand response modes by emitting control
signals as below.
Note: Only PIN6(DRM0) is available now, and other PIN functions are being devel-
oped.
1
8
BMS_CANH
BMS_CANL
Definition
2
3 4
5
6 7 81
PIN
BMS_485A
BMS_485B
GND
Definition
CAN
Rs485
.
1
8
DRM0 GND GND
1 2 3 4 5 6 7 8
1
8
COM1
NO 1
COM2
DI 1
DI 2
NC 1
NO 2
1 2 3 4 5 6 7 8
NC 2
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