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LOGR-S Data Logger Firmware

Download V. 1.09.239


While software upgrades are conducted right on your PC, firmware upgrades need to be administered directly to the LOGR-S Data Logger. From the LOGR-S webpage, go to Logger  → Firmware. Click on ‘Choose file’ and select the latest downloaded firmware on your PC. For questions on how to administer firmware upgrades, please contact our technical services team at

VERSION 1.09.239, 3/28/2024
  • Adds support for Lufft WS100 HailSensor
  • Improves Modbus TCP server stability
  • BP65 recommended defaults now selectable
  • T60 recommended defaults now selectable
  • FTP password field now supports special characters
  • Includes serial sensor's Modbus client address as part of FTP-exported configuration
  • Supports Lufft SHM31
  • User interface improvements for Soiling Ratio set-up page
  • LOGR system information now included as a header in all exported FTP file types
  • LOGR-S feature: Wind Gust
  • Supports NRG R2-D
  • Sensor height now included in FTP-exported channel configuration
  • FTP-exported .dat files correctly identify "File Content" (1-second, statistical, diagnostics, log)
  • Resolves tab delineation issues for FTP-exported soiling channel configuration
  • Improves recommended Slope/Offset for PSM-related analog channel configurations
  • Resolves (GUI) sensor reset button
  • FTP-exported statistical .dat files labeled with beginning of the statistical time period
  • Customizable username and password
  • Recording of 1-second data can be enabled or disabled (disabling allows for 365 days of statistical data recording)
VERSION 1.07.20, 7/13/2023
  • Supports new soiling calculations based on IEC- 61724 Annex C method 2
    • New channels Effective Irradiance Clean (Ch209), Soiling Ratio Index (Ch210) and Daily Soiling Ratio (Ch211) added to the data files (one second, statistical) and sensor outputs page
  • Supports Pulsed Soiling Module (Voc, Isc channels for clean and soiled PV panels)
  • Updated Modbus demo client with added support for PSM Soiling data 
VERSION 1.06.13, 5/9/2023
  • Supports new serial sensor: IMT-Tm-RS485-MB
  • Supports new serial sensor: RDE300i
VERSION 1.06.06, 3/22/2023
  • Supports new serial sensor: Kipp & Zonen SUV5-V
  • Supports new analog sensor: IMT Si-V-1.5TC-T
  • Supports new serial sensor: IMT Si-RS485TC-T
VERSION 1.05.57, 1/4/2023
  • Default IP address changed from to
  • Allows users to choose < or > for serial sensor (SR30) threshold control
  • Added "Mains Power Fault" to the fault registers list
  • Supports NRG R1 Pyranometer to analog drop down
  • Supports analog sensors 300V soiling shunt, 30A soiling shunt
  • Calculated channel configuration improvement
  • Supports Kipp & Zonen SUV5 UV radiation sensor to analog drop down
  • Resolves the issue: sensor serial number displayed incorrectly on the generated FTP Files
  • Resolves LOGR-S FW update over cellular issue - requires on-site power cycling of LOGR-S to get web UI back up after update applied
  • Resolves page refresh jumps to the top of the sensors output page on Firefox
  • Resolves the issue of analog channels greying out inconsistently
  • Resolves firmware version reported incorrectly via Modbus RTU
Version 1.04.36, 08/01/2022
  • Supports Hukseflux SR05-D1A3 Pyranometer 
  • Adds Atonometrics RC18V Reference Cell to analog sensor default 
  • Power Save Mode (Option to turn off SR30 Fan when not on grid power) 
  • Enhances Modbus to allow any valid starting address variable read count 
  • Adds timestamp to event log file to be consistent with DAT and DIAG 
  • Fixes FTP issue with daily scheduled interval 
Version 1.03.44, 07/25/2022
  • Adds support for Kipp & Zonen SMP10 Modbus Pyranometer 
  • Adds support for Atersa Datasol Met MU-38-S Modbus PV Reference Cell  
  • Adds support for Lufft WS200, WS300 Modbus sensors in addition to WS500 and WS600 
  • Adds capability for Ratio Calculation Type  
  • Updates LOGR Modbus RTU settings to include 57600 Baud Rate 
  • Updates analog sensor list to include sensor manufacturer 
  • Resolves issue with units on calculated channel daily insolation (from kW/m^2/hour to kWh/m^2) 
  • Resolves issue with web client (browser) going to new page before web server has changed its address 
  • Resolves issue with truncated sensor description  
  • Resolves issue with SR30 control text (fan was listed as heater) 
  • Resolves issue with extra line spaces and missing scale factor, offset in LOGR DAT file 

Download Calibration Reports

Our Calibration Report Retriever Tool is a comprehensive database of reports for the following products:

NRG Anemometers
110S Temperature Sensor
200M Wind Vane
200P Wind Vane
BP20 Barometric Pressure Sensor
BP60 + BP60C Barometric Pressure Sensor
HybridMC Anemometer + Vane
HybridXT Anemometer + Vane
PVT1 PV Temperature Sensor
T60 + T60C Temperature Sensor
R1 Pyranometer
RH5X Relative Humidity Sensor
Thies First Class Advanced Anemometer
WindSensor P2546-OPR Anemometer

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