Deye Inverter Entities Sensor Modbus Register 74: Name inverter name battery discharging total

Technical Definition

The register name inverter name battery discharging total at address 74 is used to monitor name inverter name battery discharging total on the Deye Inverter Entities Sensor.

• Protocol: Modbus RTU
• Data Type: U DWORD R
• 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 battery discharging total (Address: 74)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=74, 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 battery discharging total"
  address: 74
  value_type: U_DWORD_R
  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 discharged from the battery (kWh). Represents total energy supplied by the battery.

Troubleshooting: Zero value may indicate no battery discharge, discharge limit reached, or a communication/sensor error. Verify battery operational status.