Sungrow Inverters

Supported Devices

Physical Connection

Ethernet Connection

For correct ethernet wiring, follow the guidelines for ethernet wiring.

RS485 Connection

1. Locate the COM port on your Sungrow inverter
2. Connect the RS485 cable:
   • Connect A+ (typically red) to pin 1
   • Connect B- (typically black) to pin 2
   • Connect GND (typically yellow) to pin 3 if available

Network Configuration

For Ethernet Connection

1. Set the inverter's network settings:
   • Access the inverter's display interface
   • Navigate to Settings → Communication Parameters
   • Enable MODBUS-TCP
   • Set the communication address (default: 502)
   • Configure DHCP or static IP as needed

Device Configuration

Enabling Modbus Communication

1. Access the inverter's LCD screen
2. Navigate to Settings → Communication Parameters
3. Set the following:
   • Protocol: MODBUS
   • Device Address: Set a unique address (1-247)
4. For Modbus TCP:
   • Enable MODBUS-TCP
   • Port: 502 (default)
   • IP Address: Configure as per your network requirements

Verification

1. Check the communication LED indicator:
   • Steady green: Normal communication
   • Blinking green: Data transmission in progress
   • Off: No communication
2. Verify network connectivity using ping test (for Ethernet)

LED Status Indicators