Deye Inverter Entities Advanced Modbus Register 251: Name inverter name setting timezone2

Technical Definition

The register name inverter name setting timezone2 at address 251 is used to monitor name inverter name setting timezone2 on the Deye Inverter Entities Advanced.

• Protocol: Modbus RTU
• Data Type: INT16
• Unit:
• 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 setting timezone2 (Address: 251)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=251, 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 setting timezone2"
  address: 251
  value_type: INT16
  unit_of_measurement: ""

Connection Diagram

Here is the standard RS485 wiring for this configuration:

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

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

💡 Engineer's Insight

Analysis: Inverter setting for the second secondary timezone. Allows for flexible scheduling or regional adjustments.

Troubleshooting: Zero value may indicate an unused or unset secondary timezone. Confirm if this setting is intentionally blank.