Lufft WSxxx-Series Weather Stations X-Series Integration Guide

Real-Time Weather Measurements

The Lufft WSxxx-Series of Weather Stations are compatible with NexSens X-Series data loggers via the Modbus-RTU protocol and the RS-485 sensor interface. A pre-defined script on X-Series data loggers is able to detect, log, and transmit all parameters available on all models of Lufft WSxxx-Series of Weather Stations. Parameter data is transmitted, in real-time, at a user-specified interval (e.g., 10 minutes) to the NexSens WQData LIVE Web Datacenter. There, data is stored on customizable dashboards with statistics and graphical interfaces for each parameter. Users can download and send data reports via Email, FTP, or an API. Below is information on the settings and wiring required to integrate these sensors with a NexSens X-Series data logger.

Lufft WS800 Multi-Parameter Weather Sensor product page.

Figure 1: Lufft WSxxx-Series of Weather Stations integration with NexSens X-Series data loggers.



Compatible Models

Lufft produces many models of the WS-Series line of weather stations, each with its own output of parameters. An internal script on NexSens X-Series data loggers will automatically detect the type of connected weather station and its associated parameters.

Lufft WS100 Radar Precipitation Sensor product page.

Figure 2: Lufft WS100 Radar Precipitation Sensor.


Lufft WS200 Ultrasonic Wind Sensor product page.

Figure 3: Lufft WS200 Ultrasonic Wind Sensor.


Lufft WS302 Multi-Parameter Weather Sensor product page.

Figure 4: Lufft WS3xx Multi-Parameter Weather Sensor.


Lufft WS401 Multi-Parameter Weather Sensor product page.

Figure 5: Lufft WS4xx Multi-Parameter Weather Sensor.


Lufft WS504 Multi-Parameter Weather Sensor product page.

Figure 6: Lufft WS504 Multi-Parameter Weather Sensor.

Lufft WS600 Multi-Parameter Weather Sensor product page.

Figure 7: Lufft WS600 Multi-Parameter Weather Sensor.

Lufft WS700 Multi-Parameter Weather Sensor product page.

Figure 8: Lufft WS700 Multi-Parameter Weather Sensor

Lufft WS800 Multi-Parameter Weather Sensor product page.

Figure 9: Lufft WS800 Multi-Parameter Weather Sensor




Lufft WS-Series Integration

All Lufft weather stations must have their communication protocol changed from the default UMB-Binary to Modbus-RTU for communication with X-Series data loggers. Additional settings are recommended to gather more accurate measurements from each of the stations’ parameters.

1. Setting Up a Workspace

  1. Configure communication directly using either a Lufft WS-Series Sensor Interface Cable or a NexSens Lufft WS-Series Sensor Configuration Cable.
  2. Connect the cable to the Lufft and the USB connection to a PC. Leave the sensor unpowered.
  3. Determine the COM port of the USB cable with the Windows Device Manager.
  4. Download and open the ConfigTool.NET software.
  5. Check the bottom right of the software to confirm the COM port is correct. If the COM port is incorrect or no COM port is available, edit an existing workspace or create a new workspace to change the COM port.
    1. Creating a new workspace will automatically open the “Com Channel” options.
    2. If editing an existing workspace, you must select the plug icon while in the “Workspace Details” to open the “Com Channel” options.

Figure 10: Workspace options.


Figure 11: COM Channel.


  1. Apply 12VDC power to the sensor.
  2. Click the ‘+’ or magnifying glass option in the top right to add or scan for a device, respectively.

Figure 12: Add, scan or import/export workspaces.


2. Connecting to a New Device

  1. If adding a device, insert any device name, choose the WSx-UMB device class, and insert the proper device ID. The default ID for new systems is 1.

Figure 13: Manually add a device.


  1. While scanning for a device, new devices will begin loading their channels once the scanning reaches class 7 device 1, since Lufft weather stations are in class 7 and have the default ID of 1.
    1. If connecting to a device with a changed communication protocol (i.e., SDI-12 or Modbus-RTU), visit the Backdoor Communication for Pre-configured Devices article.
    2. If already connected, go to the Configure Settings section to set the proper settings on the weather station.

Figure 14: Scan for a device.



3. Configure Settings

  1. The device settings will have populated if the software successfully read the sensor.

Figure 15: Device settings.


  1. To be setup properly for an X2 data logger, the following settings must be changed:
    1. Change communication protocol from UMB-Binary to Modbus-RTU
    2. Set all average intervals to 2 minutes (i.e., temperature, relative humidity, air pressure, lightning, global radiation, wind)
    3. Turn on Compass Correction
    4. Turn off the Fan (unless otherwise specified)
    5. Turn off the Heater (unless there is adequate 24V power)
    6. Set the altitude of the final deployment location (in meters).
    7. Set the local declination for the final deployment location in the Compass offset setting (in degrees).
      • The Lufft weather station has a North arrow that must point to magnetic north during deployment. Depending on the deployment location, “true north” will have a slight offset from magnetic north due to the shifting of the north magnetic pole. Thus, an offset must be entered to correct for the difference.
      • Using the NOAA Geomagnetic field calculator, enter the coordinates for the final deployment location. Click “Calculate” and a new window will appear with the declination for the deployment location.

Figure 16: NexSens headquarters declination.


      • Ensure the final unit is in decimal degrees by using the FCC conversion calculator
        • Remember, only the longitude has a declination. If the declination is West, the number must be negative. If the declination is East, the number must be positive.
  1. After all settings have been changed, click the ‘Write To’ up arrow in the top right to save settings.
    1. Optionally, save a settings template for the sensor with the ‘Export Settings’ button on the top right.
    2. Power down and connect the weather station to the X2 for sensor detection.

Figure 17: Write to device, and import/export device settings.


4. Automatic Sensor Detection

After adjusting the internal communication settings, the sensors and their parameters can be programmed onto the logger via automatic detection.

X-Series Script Information

The X-Series data logger includes a pre-loaded Lufft script, which is enabled by default upon shipment. For new data loggers, connecting the sensor and providing power will force the data logger to run through an automatic detection process.

Run a Sensor Detection

For loggers with adjusted settings, use the link below to confirm the In-Situ script is enabled before running a sensor detection.

Configure Sensor Scripts

X2 Script NumberCommunication ProtocolSensor InterfaceBaud RatePower TypeWarmup Period (sec)Frame


Script Parameters

ParameterUnitAssociated WS-xxx models
Air Temperature°C401, 500, 501, 600, 601, 700, 800
Relative Humidity%401, 500, 501, 600, 601, 700, 800
Relative Barometric PressurehPa401, 500, 501, 600, 601, 700, 800
Wind Speedm/s500, 501, 600, 601, 700, 800
Max Wind Speedm/s500, 501, 600, 601, 700, 800
Wind DirectionDeg500, 501, 600, 601, 700, 800
HeadingDeg500, 501, 600, 601, 700, 800
Solar RadiationW/m2501, 700, 800
Precipitation Type600, 601, 700, 800
Rain Intensitymm/hr600, 601, 700, 800
Total Rainmm401, 600, 601, 700, 800
Interval Rainmm600, 601, 700, 800
Lightning EventsEvent/min800
Interval Lightning EventsEvent800


5. Setting up WQData LIVE

Once an X-Series data logger has finished a new sensor detection, it will automatically push the sensor configuration to the WQData LIVE Web Datacenter. Follow the three articles below to create a WQData LIVE account and a project/site. Then add the data logger to the project using the included claim code.



Real-Time System Application

Real-time weather and atmospheric measurements from the Lufft WS-Series of Weather Stations are useful in various environmental monitoring applications.

Applicable Systems

Discover applicable uses for Lufft WS-Series Weather Stations.


Case Studies

Read about specific applications using Lufft WS-Series Weather Stations.


Weather and Atmospheric Measurements

Learn more about weather and atmospheric measurements on the NexSens Blog Page.


Sensor Manuals

For additional information on Lufft weather stations, please refer to the Lufft WS Manual.