COM communication interface is mainly provided to the customer to do
the second step of development use.
COM PIN Definition
Ø
Ø
Application occasion
COM is a standard communication interface, through which the
monitoring data of the inverter can be directly obtained. Also, external
communication devices can be connected to carry out the secondary
development of the inverter .For specific technical docking,
please contact SolaX.
52
53
Electrical Connection
Electrical Connection
5.5.3 COM Communication
1 2 3 4 5 6 7 8
1
8
485A
485B
X
XX X X X
Data Read
Data Read
Data Write
Smart control device
(developing)
BMS communication cable.
DRM communication cable
DRM4/8
+3.3V DRM0 GND
GND
1 2
3
4
5
6 7 8
The BMS pin is defined as follows:
Note!
The communication port on the lithium battery must be consistent with the
definition of pins 4, 5, 7, and 8 above;
The DRM pin is defined as follows:
1 2
3
4
5
6 7 8
DRM1/5 DRM2/6 DRM3/7
1 2 3 4 5 6 7 8
1
8
Ø
Ø
1
8
BMS_CANH
GND
BAT_TEMP
GND
BMS_CANL
2
3
4
5
6 7 8
1
X
BMS_485A BMS_485B
Note!
The communication port on the COM must be consistent with the definition of
pins 4, 5 above;