Multiple modbus slaves, identical sensors

Configuration
1

Hi,

I have 3 Eastron SDM630 power meters, which are connected using Modbus (RTU). I currently have this setup like this:

modbus:
    name: hub1
    type: serial
    baudrate: 9600
    bytesize: 8
    method: rtu
    parity: N
    port: /dev/ttyUSB1
    stopbits: 1

    sensors: !include SDM_meters.yaml

SDM_meters.yaml

#slave1
    - name: sdm630_garage_total_active_energy
      address: 342
      input_type: input
      count: 2
      slave: 1
      precision: 2
      data_type: float32
      unit_of_measurement: kWh
      device_class: energy
      state_class: total_increasing

    - name: sdm630_garage_total_system_power
      address: 52
      input_type: input
      count: 2
      slave: 1
      precision: 2
      data_type: float32
      unit_of_measurement: W
      device_class: energy
      state_class: measurement

But in the way it is configured, i would need to repeat these sensor entries for all thee SDM630’s, containing a lot of redundant configuration.

Ideally, i would like something like this:

sensors: !include SDM_meters.yaml name=garage slave=1

    - name: sdm630_{{ NAME }}_total_system_power
      address: 52
      input_type: input
      count: 2
      slave: {{ SLAVE }}
      precision: 2
      data_type: float32
      unit_of_measurement: W
      device_class: energy
      state_class: measurement

But I have no idea how to accomplish that. Is there a way to define the modbus registers to read only once and have the slave number be part of some variable or something?

My goal is to only define the modbus values once, and just create the sensors for each slave attached to the modbus bus.

1 Like
2

Did you find a solution for the configuration question?