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Fetch metrics from your Thermia heat pump using Telegraf

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thermia-telegraf

Here's some Telegraf configuration that pulls metrics from your Thermia heat pump and saves them into a database of your choice.

Read up on Telegraf here

All info on Modbus registers for the Genesis platform was found here.

The example config below gets data once per minute and saves it to an InfluxDB instance.

[agent]
  interval = "1m"

[[outputs.influxdb]]
  urls = ["http://localhost:8086"]
  database = "thermia"
  precision = "s"

[[inputs.modbus]]
  name = "Thermia"
  slave_id = 1
  timeout = "1s"
  controller = "tcp://10.0.10.45:502"
  input_registers = [
    { name = "brine_in_temperature",  data_type="FIXED", scale=0.01, byte_order="AB", address = [10]},
    { name = "brine_out_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [11]},
    { name = "compressor_speed_rpm", data_type="FIXED", scale=1.0, byte_order="AB", address = [5]},
    { name = "discharge_pipe_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [7]},
    { name = "condenser_in_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [8]},
    { name = "condenser_out_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [9]},
    { name = "outdoor_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [13]},
    { name = "tap_water_top_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [15]},
    { name = "tap_water_lower_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [16]},
    { name = "tap_water_weighted_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [17]},
    { name = "system_supply_line_calculated_set_point", data_type="FIXED", scale=0.01, byte_order="AB", address = [18]},
    { name = "selected_heat_curve", data_type="FIXED", scale=0.01, byte_order="AB", address = [19]},
    { name = "condenser_circulation_pump_speed_%", data_type="FIXED", scale=0.01, byte_order="AB", address = [39]},
    { name = "brine_circulation_pump_speed_%", data_type="FIXED", scale=0.01, byte_order="AB", address = [44]},
    { name = "hgw_supply_line_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [45]},
    { name = "compressor_operating_hours", data_type="FIXED", scale=1.0, byte_order="AB", address = [48]},
    { name = "tap_water_operating_hours", data_type="FIXED", scale=1.0, byte_order="AB", address = [50]},
    { name = "external_additional_heater_operating_hours", data_type="FIXED", scale=1.0, byte_order="AB", address = [52]},
    { name = "compressor_speed_percent", data_type="FIXED", scale=0.01, byte_order="AB", address = [54]},
    { name = "compressor_current_gear", data_type="FIXED", scale=0.01, byte_order="AB", address = [61]},
    { name = "internal_additional_heater_current_step", data_type="FIXED", scale=1.0, byte_order="AB", address = [67]},
    { name = "bubble_point", data_type="FIXED", scale=0.01, byte_order="AB", address = [122]},
    { name = "dew_point", data_type="FIXED", scale=0.01, byte_order="AB", address = [124]},
    { name = "superheat_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [125]},
    { name = "sub_cooling_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [126]},
    { name = "low_pressure_side", data_type="FIXED", scale=0.01, byte_order="AB", address = [127]},
    { name = "high_pressure_side", data_type="FIXED", scale=0.01, byte_order="AB", address = [128]},
    { name = "liquid_line_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [129]},
    { name = "suction_gas_temperature", data_type="FIXED", scale=0.01, byte_order="AB", address = [130]},
  ]

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Fetch metrics from your Thermia heat pump using Telegraf

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