The Rheonics SME (Electronics) comes with the ability to store measurement data on an internal logger.

Measurement and diagnostics data is stored on the card giving access to the last 1 year of data. The onboard data logger can be configured to store data for even longer periods and at adjustable duty cycle.

Log files can be downloaded from the internal logger using ftp client or through RCP software.

Requirements

1. Sensor electronics

2. RCP installed and operational on the PC

3. RCP connected to the Sensor electronics to see the logfiles and download them

4. Microsoft Excel installed on the PC to use the EXPORT functionality from RCP

Downloading LOG files using RCP software

Start RCP software.

Go to LOGGER tab on the software.

This tab allows you to transfer from the SMET, the different type of log files that are kept in memory. Also, you can use the “Update Sensor” function to upgrade the SMET firmware.

Logger: In-Built Historian:

Click the “Refresh” button to populate the different file names according to it’s type. The name format corresponds with the date the file was created. This is, every day a set of new files is created.
1. Measurement logs; contains the measurement processed by the SMET in a csv format.
2. Sensor logs; contains the sensor measurements ASCII string with relevant sensor information.
3. Calibration Logs; These files store the calibration information, as parameters calibrated and coefficients.
4. Diagnostics Logs: Relevant sensor and electronics diagnostics information for rheonics support.

After refreshing, check the files you wish to download. You can navigate to older files using “Next” button, and return to most recent using “Prev” Button.

Click “Download” to start downloading the seleceted files. You will be prompted to select the target folder where the files will be stored and get a notification after successful or unsuccessful transfer. When RCP is connected over USB, you also see a status bar showing the progress of the download. When RCP is connected over Ethernet, you do not see a progress bar but will get a notification window at the completion (and a message whether the transfer was successful or failed).

Click the “Clear All” button to uncheck ALL the selected files.
Click “Open Folder” to open the target folder that contains the downloaded logfiles.

Export files to Excel:

Use this button to export the SMET measurement logfiles and the RCP logfiles to Microsoft excel. By clicking this button, a file dialog will prompt you to choose a file to export. The files available will be of the -P type (corresponding to downloaded SMET measurement logfiles), or of the type “Filename_log.txt”, where “Filename” is the name of a RCP measurements logfile created on a previous run.

For -P files, the software will export on the first two columns the date and time of each data sample on UTC and local time, respectively. Other columns will display the measured values of all the measurement parameters.
For RCP logfiles, RCP will copy the data of the logfile and assign each csv column into an excel column with no further modifications.

Video Tutorial

The video below shows accessing the logfiles, downloading them and exporting them to excel using the inbuilt export functionality.

Note: Ensure RCP is connected to the sensor over USB or Ethernet. You can see the files on the onboard Logger only when the RCP is connected. (Status light is green in Setting tab)

Note: To use export function to excel, you need to have excel installed on the PC. Export function will not work otherwise.

LOG file structure

The SMET SD card continuously logs the sensor data and other relevant information for customers and support. These files are created daily, including the date as part of the name in the format:

YYMMDD-X.txt

Where:

YY – Last two digit of the year.

MM - Two-digit Month number (00-12)

DD – Two-Digit Day of the month (00-31)

X – File type. Can have any of these values: “P”, for measurement file, “A” for sensor file, “C” for calibration file, “O” for support file.

Date is used using GMT+0, so the file will start at a different local time. Below you will see method to export the logfile with your local time.