Device Sofar G3 Modbus Register 1165: Name inverter name ac output voltage

Technical Definition

The register name inverter name ac output voltage at address 1165 is used to monitor name inverter name ac output voltage on the Device Sofar G3.

• Protocol: Modbus RTU
• Data Type: U WORD
• Unit: V
• Access: Read Only

How to Read (Python pymodbus)

Use this code snippet to read this specific value via RS485:

from pymodbus.client.sync import ModbusSerialClient

client = ModbusSerialClient(method='rtu', port='/dev/ttyUSB0', baudrate=9600)
client.connect()

# Read name_inverter_name_ac_output_voltage (Address: 1165)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=1165, count=2, unit=1)

if not result.isError():
    print(f"Raw Value: {result.registers}")
else:
    print("Error reading register")

client.close()

Integration (Home Assistant)

Paste this into your configuration.yaml:

- platform: modbus_controller
  name: "name_inverter_name_ac_output_voltage"
  address: 1165
  value_type: U_WORD
  unit_of_measurement: "V"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Device Sofar G3]

    PLC -- "A+ (D+)" --> Device
    PLC -- "B- (D-)" --> Device
    PLC -- GND --> Device

💡 Engineer's Insight

Analysis: AC Output Voltage (Volts). Indicates the grid voltage the inverter is synchronizing with and exporting to.

Troubleshooting: Low/Zero: Grid voltage issue, inverter fault, or no load connected. High: Grid voltage issue or inverter fault.