Text Sensor in Grafana

I am using Home assistant 2026.2 with the victoriametrics app. Everything is running well and i can visualize all the value-based sensors with grafana.
However, those sensors which hold text-based information are always displayed as ‘0’ in grafana.
How can I access the text information in grafana?
For example: I use the plugin Weishaupt Modbus which creates several sensors. One of them is the operation mode (heating, hot water, defrost, …).

If i use this sensor in grafana, the “value” is always zero and none of the fields available in grafana show any change.

Is it maybe I filter this attribute in my config (see below)?
Or do I just have to enter a magic string in my query for that? I have both the VictoriaMetrics and Prometheus Plugin in my grafana installation

influxdb:
  api_version: 1
  host: 1bd4a9fb-victoria-metrics
  port: 8428
  max_retries: 3
  measurement_attr: entity_id
  tags_attributes:
    - friendly_name
    - unit_of_measurement
  ignore_attributes:
    - icon
    - source
    - options
    - editable
    - min
    - max
    - step
    - mode
    - marker_type
    - preset_modes
    - supported_features
    - supported_color_modes
    - effect_list
    - attribution
    - assumed_state
    - state_open
    - state_closed
    - writable
    - stateExtra
    - event
    - friendly_name
    - device_class
    - state_class
    - ip_address
    - device_file
    - unit_of_measurement
    - unitOfMeasure
    - color_mode
    - hs_color
    - rgb_color
    - xy_color
    - hvac_action
    - value
    - writeable
    - attribution
    - dataCorrect
    - dayname
  include:
    domains:
      - sensor
      - binary_sensor
      - light
      - switch
      - cover
      - climate
      - input_boolean
      - input_select
      - number
      - lock
      - weather
  exclude:
    entity_globs:
      - sensor.clock*
      - sensor.date*
      - sensor.glances*
      - sensor.time*
      - sensor.uptime*
      - sensor.dwd_weather_warnings_*
      - weather.weatherstation
      - binary_sensor.*_smartphone_*
      - sensor.*_smartphone_*
      - sensor.adguard_home_*
      - binary_sensor.*_internet_access