# Parameter `Field` Default Value: `undefined` Dedicated definition of the field for InfluxDB use for saving in the Influx database (e.g.: "watermeter/value"). !!! Note If you edit the config file manually, you must prefix this parameter with `` followed by a dot (eg. `main.Field`). The reason is that this parameter is specific for each `` (`` is the name of the number sequence defined in the ROI's).