Esp32 C3 Zero Epever Modbus Register 13062: Consumed Energy Month

Technical Definition

The register Consumed Energy Month at address 13062 is used to monitor consumed energy month on the Esp32 C3 Zero Epever.

• Protocol: Modbus RTU
• Data Type: U DWORD R
• Unit: kWh
• 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 Consumed Energy Month (Address: 13062)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=13062, 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: "Consumed Energy Month"
  address: 13062
  value_type: U_DWORD_R
  unit_of_measurement: "kWh"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Esp32 C3 Zero  Epever]

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

💡 Engineer's Insight

Analysis: Total consumed energy this month. Units: Kilowatt-hours (kWh). Represents energy drawn by loads since the start of the month.

Troubleshooting: Zero suggests no load activity this month or a monitoring fault. Check previous months for comparison.