Export a data log

Export a configured data log from the HMI device to removable media to view tag values collected on the HMI device. The exported .zip file contains individual .csv files for each data log in the project. Open the exported data log file on a computer to view the values in the data log.
Prerequisites
  • Insert an SD Card into the HMI device so the Data Log service can run and export.
    TIP:
    If a referenced tag does not exist in a controller or there is a communication issue with a controller,
    Tags are in error
    appears at the bottom of the
    Data Export
    popup that opens from the
    Settings
    screen.
To export a data log
  1. Open the
    Settings
    screen.
  2. Select
    Data Export
    . The
    Data Export
    popup opens and indicates that the Data Log service is running.
  3. Under
    What to export,
     select
    Data logs
    .
  4. In the
    Filename
     box, enter a name for the export file. "
    archive_datalog
    "
    is the default name of the export file.
  5. Under
    Destination
    , select
    SD Card
     or
    USB Device
    .
  6. Select
    Export
    .
    Export progress
     shows a progress bar. The
    Data Export
     popup displays the last date and time a data log exported at the top of the window.
    TIP:
    Tips:
    • When the data log is exporting, Data Log Exporting
      Data Export
      appears in the
      System Banner
      .
    • If there is an error in logging data or exporting a data log, Data Log Error
      Data Export Error
      appears in the
      System Banner.
    • Data log exports do not complete or create a .zip file on removable media if a ControlFLASH, reboot, or power cycle to the HMI device occurs during the export or when removing media before the export is complete.
    • There is no potential damage to files when removing a USB storage device when exporting the data log file completes.
IMPORTANT:
Do not remove an SD card before preparing the media for safe removal. This may corrupt files on the removable device.
  1. If an SD card contains the exported data log file, next to
    SD Card
    , select Safely Remove icon
    Safely Remove SD Card
    . The
    Data Logger
     status at the top of the Data Log popup changes to
    Stopped
    and
    Remove SD card; reinsert to resume logging data
     appears. Data Log Remove icon
    Data Log Remove
     appears in the
    System Banner
    . It is safe to remove the SD card.
    TIP:
    Tips:
    • Data logging resumes when an SD card is inserted into the HMI device.
    • Bad Quality tag values occur in the data log when:
      • The HMI device is disconnected from a controller.
      • A controller is not synchronized.
      • An invalid tag is not defined in a controller or has an invalid address logged in the data log.
      • When downloading a project to or restarting the HMI device, data may appear as Bad Quality until the Data Log service starts collecting data from a controller.
    • When exporting a data log to an SD card or USB storage device, avoid an error message by ensuring that the SD card or USB storage device:
      • Has sufficient space
      • Is inserted into the HMI device
      • Has write permissions
      • Is a supported SD card type
      • Has a supported format of either FAT32 or EXT3
      • Is not corrupted and does not contain corrupted files
    • If a data log does not export to a supported SD card that meets requirements, reboot the HMI device. If rebooting fails, insert the SD card into a computer and verify that the SD meets requirements. Follow any prompt to scan and repair the file system index on the SD card.
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