Device Sofar G3 Modbus Register 1414: Name inverter name pv power

Technical Definition

The register name inverter name pv power at address 1414 is used to monitor name inverter name pv power on the Device Sofar G3.

• Protocol: Modbus RTU
• Data Type: U WORD
• Unit: W
• 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_pv_power (Address: 1414)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=1414, 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_pv_power"
  address: 1414
  value_type: U_WORD
  unit_of_measurement: "W"

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: PV Power (Watts). The real-time DC power output from the solar panels.

Troubleshooting: Low/Zero: Low irradiance, shading, panel/wiring issue, or inverter fault. High: May indicate an inverter issue if inconsistent with voltage/current.