Deye Inverter Entities Sensor Modbus Register 81: Name inverter name grid energy exported total

Technical Definition

The register name inverter name grid energy exported total at address 81 is used to monitor name inverter name grid energy exported total on the Deye Inverter Entities Sensor.

• Protocol: Modbus RTU
• Data Type: U WORD
• Unit: kWh
• 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 grid energy exported total (Address: 81)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=81, 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 grid energy exported total"
  address: 81
  value_type: U_WORD
  unit_of_measurement: "kWh"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Deye Inverter Entities Sensor]

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

💡 Engineer's Insight

Analysis: Total accumulated energy exported to the grid (kWh). Cumulative power sent back to the utility over time.

Troubleshooting: Zero value might signify a new installation, a fault in export measurement, or no surplus energy exported. Check generation and export configuration.