Modbus Climate error when send command

fapg · January 16, 2023, 12:06pm

Hi,

I’ve this configuration:

- name: thermostat
  type: tcp
  host: 192.168.1.95
  port: 502
  delay: 1
  timeout: 10
  retries: 5
  retry_on_empty: true
  message_wait_milliseconds: 200
  climates:
    - name: "Thermostat"
      slave: 5
      address: 0
      target_temp_register: 64
      min_temp: 15
      max_temp: 35
      scan_interval: 60
      temperature_unit: C
      data_type: int16
      scale: 0.1
      offset: 0
      precision: 1
      hvac_mode_register:
         address: 62
         values:
            state_auto: 4
            state_cool: 1
            state_heat: 0
            state_fan_only: 2
            state_dry: 3
      hvac_onoff_register: 61

The reads are all ok, but when I try to on/off or change the state or target temp, I’ve this erros:

homeassistant.components.modbus.modbus] Pymodbus: thermostat: Exception Response(134, 6, IllegalFunction)

And additional setting, that I can’t know how to add it, is the fan speed and humidity. Do i have to add outside this module?

I use openhab too, and in openhab I’ve this:

Bridge modbus:tcp:thermostat                             [ host="192.168.1.95", port=502, id=5, connectTimeoutMillis=15000, connectMaxTries=3 ] {
   Bridge poller readonly [ start=0, length=3, refresh=60000, type="holding" ] {
      Thing data RoomTemp @ "Piso 1"                          [ readStart="0", readValueType="int16", readTransform="JS(divide10.js)" ]
      Thing data FloorTemp @ "Piso 1"                         [ readStart="1", readValueType="int16" ]
      Thing data Humdity @ "Piso 1"                           [ readStart="2", readValueType="int16" ]
    }
   Bridge poller readandwrite [ start=61, length=4, refresh=10000, type="holding" ] {
      Thing data Status @ "Piso 1"                            [ readStart="61", readValueType="int16", writeStart="61", writeValueType="int16", writeType="holding", writeMultipleEvenWithSingleRegisterOrCoil="true"]
      Thing data SystemMode @ "Piso 1"                        [ readStart="62", readValueType="int16", writeStart="62", writeValueType="int16", writeType="holding", writeMultipleEvenWithSingleRegisterOrCoil="true"]
      Thing data FanSpeed @ "Piso 1"                          [ readStart="63", readValueType="int16", writeStart="63", writeValueType="int16", writeType="holding",writeMultipleEvenWithSingleRegisterOrCoil="true"]
      Thing data SetTemp @ "Piso 1"                           [ readStart="64", readValueType="int16", writeStart="64", writeValueType="int16", writeType="holding", writeMultipleEvenWithSingleRegisterOrCoil="true", readTransform="JS(divide10.js)", writeTransform="JS(multiply10.js)" ]
   }
}

And it works. Could some one give a help?

Best Regards,