Smart Home Automation Forum

how to integrate KinCony modbus energy meter to home assistant using raspberry pi's RS485 port

A. use "inCony_Meter_config_tool" change RS485 " Parity: EVEN "  to " Parity: NONE ", because we found home assistant can't work with "EVEN", KinCony energy meter default setting is "EVEN".
A-1: connect energy meter to PC by USB-RS485 adatper:
[attachment=4053]
A-2: first time, use RS485 setting,  Parity: EVEN (Chinese word on left is : 偶校验)  click "打开" (open serial port) button.
[attachment=4058]
[attachment=4052]
A-3: click "无校验" (None) button, set  Parity: NONE
until now,  "Parity" is set completed.

if you want change meter ID from 1, you can "set the meter ID", such as input 1,2,3,.... then click "改表号+读" (write button), it will set the ID for meter.
if you have changed  Parity: NONE, you want connect to serial port again, you need change serial setting,  Parity=None, Chinese word is "无校验"，then click "读" (Read) button, you will read all data from meter.
[attachment=4054]

now the meter hardware setting is complete, then you can connect meter to KC868-Server or Server-Mini's RS485 port directly. see photo:
[attachment=4055]
config HA yaml as here:
[attachment=4056]
[attachment=4059]
modbus:
  - name: hub1
    type: serial
    baudrate: 9600
    bytesize: 8
    method: rtu
    parity: N
    port: /dev/ttyS0
    stopbits: 1

    sensors:
    - name: meter-voltage
      slave: 1
      address: 100
      input_type: holding
      data_type: float32
      count: 2
      precision: 2
      unit_of_measurement: V
      device_class: voltage

    - name: meter-current
      slave: 1
      address: 106
      input_type: holding
      data_type: float32
      count: 2
      precision: 2
      unit_of_measurement: A
      device_class: current

    - name: meter-power
      slave: 1
      address: 118
      input_type: holding
      data_type: float32
      count: 2
      precision: 2
      unit_of_measurement: kW
      device_class: power
     
    - name: meter-factor
      slave: 1
      address: 142
      input_type: holding
      data_type: float32
      count: 2
      precision: 2
    #  unit_of_measurement:
      device_class: power_factor

    - name: meter-frequency
      slave: 1
      address: 144
      input_type: holding
      data_type: float32
      count: 2
      precision: 2
      unit_of_measurement: Hz
      device_class: frequency

    - name: meter-consumption
      slave: 1
      address: 0
      input_type: holding
      data_type: float32
      count: 2
      precision: 2
      unit_of_measurement: kWh
      device_class: energy_storage
add meter to HA dashboard:
[attachment=4057]

You rock sir. Perfectly works.

One comment: I don't use Windows as native OS so I used config tool in windows Virtual Machine. Had to install this driver to get COM recognized: https://www.wch-ic.com/downloads/CH341SER_ZIP.html

Cheers!

ok, good.

meter-consumption is stuck at 0.04 kWh since several weeks and I had a lot of consumption since then.

How to verify if it works correctly?

what's the value on meter's display about it?

if use new home assistant, Please remove count=## lines from the modbus config part of configuration.yaml because now count is only valid for data_type: custom and data_type: string and is invalid for all other data types like int16, uint16 etc.