Easun Esp8266 Mod Modbus Register 233: Name inverter charging average current

Technical Definition

The register name inverter charging average current at address 233 is used to monitor name inverter charging average current on the Easun Esp8266 Mod.

• Protocol: Modbus RTU
• Data Type: S WORD
• Unit: A
• 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 charging average current (Address: 233)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=233, 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 charging average current"
  address: 233
  value_type: S_WORD
  unit_of_measurement: "A"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Easun Esp8266 Mod]

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

💡 Engineer's Insight

Analysis: Average current supplied by the inverter for charging (Amps). Typically reflects AC input charging.

Troubleshooting: Zero could indicate no AC power, inverter fault, or battery fully charged.