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Kincony M30 Custom Modbus Register 101: m30 L1 current 02

Technical documentation for Modbus register 101 on Kincony M30 Custom. Data type: U WORD. Includes Python and YAML configuration examples.

January 16, 2026 3 read

Technical Definition

The register m30 L1 current 02 at address 101 is used to monitor m30 l1 current 02 on the Kincony M30 Custom.

  • Protocol: Modbus RTU
  • Data Type: U 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 m30_L1_current_02 (Address: 101)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=101, 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: "m30_L1_current_02"
  address: 101
  value_type: U_WORD
  unit_of_measurement: "A"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Kincony M30 Custom]

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


💡 Engineer's Insight

Analysis: Second current measurement for Line 1 (L1) in Amperes (A). May indicate multiple sensors or circuits.

Troubleshooting: Zero suggests no current or a sensor issue. Verify wiring and expected load on L1.