Sungrow SG100K3 User Manual

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4
4.6.
Communication Connection
4.6.1.
Identify the RS485 Terminals
1. Route the communication wires through the cable entry holes.
2. Connect the wires to the RS485 A/B terminals respectively, see
Figure 4-9.
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Figure 4-9 Serial communication wire routing
4.6.2.
Connect RS485 Wires to a PC through RS485/232 Converter
1. Route the RS485A wire to the RS485/232 converter TX+ or RX+.
2. Route the RS485B wire to the RS485/232 converter TX- or RX-.
3. Secure the wires are tightened.
4. Connect the RS485/232 converter DB9 to the PC DB9 serial port.
RS485A
RS485B
TX+/RX+
TX-/RX-
543
2
1
9
87 6
PIN3:TXD PIN2:RXD
RS485/232 Converter
SG100K3
PC RS232 Port
Figure 4-10 Serial communication interface connection

Sungrow SG100K3 Specifications

General

Brand	Sungrow
Model	SG100K3
Category	Inverter
Language	English