Sofar solar 3.3~12KTLX-G3 - Page 39

SOFAR 3.3~12KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
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USB acquisition stick
(WIFI or Ethernet) access
Use for remote data acquisition and
upgrading of inverter
Procedure：
1 2
3
4
①
②
③
For details, please refer to the user manual of USB acquisition stick.
4.5.2. COM—Multi function communication port
Name
Type
Outer diameter
(mm)
Area
(mm²)
RS485
Communication
Wire
Outdoor shielded twisted
pair meets local standards
2 or 3core：4~8
0.25~1
Table 4- 3 Recommend COM cable size
Port Description：
PIN
Define
Function
Note
1
RS485A
RS485 signal+
Wire connection monitoring or
multiple inverter monitoring
2
RS485A
RS485 signal+
3
RS485B
RS485 signal-
4
RS485B
RS485 signal-
5
Electric meter RS485A
Electric meter RS485 signal+
Wire connection Electric meter
6
Electric meter RS485B
Electric meter RS485 signal-
7
GND.S
Communication ground
As RS485 signal ground or
DRMS port ground
8
DRM0
Remote shut down
DRMS port
9
DRM1/5
DRMS port logical IO
10
DRM2/6
11
DRM3/7
12
DRM4/8
13-16
Blank PIN
N/A
N/A
Table 4- 4 Com port description