Device Deye Advanced Modbus Register 258: Name inverter name power timezone3

Technical Definition

The register name inverter name power timezone3 at address 258 is used to monitor name inverter name power timezone3 on the Device Deye Advanced.

• Protocol: Modbus RTU
• Data Type: INT16
• 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_power_timezone3 (Address: 258)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=258, 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_power_timezone3"
  address: 258
  value_type: INT16
  unit_of_measurement: "W"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Device Deye Advanced]

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

💡 Engineer's Insight

Analysis: Power limit or setting for the third defined time zone (e.g., kW).

Troubleshooting: Zero value indicates no power restriction. Confirm if a power setting is expected.