Deye Inverter Entities Sensor Modbus Register 169: Name inverter name grid power total

Technical Definition

The register name inverter name grid power total at address 169 is used to monitor name inverter name grid power total on the Deye Inverter Entities Sensor.

• Protocol: Modbus RTU
• Data Type: S 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 grid power total (Address: 169)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=169, 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 power total"
  address: 169
  value_type: S_WORD
  unit_of_measurement: "W"

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 power limit set for exporting to the grid across all inverters. Units: Watts (W).

Troubleshooting: Zero if no limit set, inverters off, or no grid connection. Verify settings and inverter operation.