Deye Inverter Entities Sensor Modbus Register 154: Name inverter name ac output voltage

Technical Definition

The register name inverter name ac output voltage at address 154 is used to monitor name inverter name ac output voltage on the Deye Inverter Entities Sensor.

• Protocol: Modbus RTU
• Data Type: S WORD
• Unit: V
• 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 ac output voltage (Address: 154)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=154, 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 ac output voltage"
  address: 154
  value_type: S_WORD
  unit_of_measurement: "V"

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: AC output voltage (V). Voltage supplied to the grid or load. Should be stable within nominal range.

Troubleshooting: Zero or fluctuating voltage indicates grid fault, loose AC wiring, or inverter malfunction. Verify grid stability and connections.