[[inputs.modbus]]
  name = "umg509"
  timeout = "5s"
  busy_retries = 3

  controller = "tcp://192.168.0.200:502"
  slave_id = 1

  holding_registers = [

    # -------- Voltages L-N --------
    { name = "voltage_l1", address = 18999, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "V" },
    { name = "voltage_l2", address = 19001, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "V" },
    { name = "voltage_l3", address = 19003, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "V" },

    # -------- Currents --------
    { name = "current_l1", address = 19011, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "A" },
    { name = "current_l2", address = 19013, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "A" },
    { name = "current_l3", address = 19015, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "A" },

    # -------- Total Real Power --------
    { name = "total_power_w", address = 19025, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "W" },

    # -------- Energy Import (cumulative) --------
    { name = "energy_import_wh", address = 19059, data_type = "FLOAT32-IEEE", byte_order = "ABCD", unit = "Wh" }
  ]