Firmware updates to older devices


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This post applies to the A7810, A8810, and A8812 Leviton EMH and Obvius branded DAS products.

While all models of the above can be updated to run the latest firmware, care and consideration should be taken when firmware updating an older device to the latest firmware. Updating the firmware does not wipe the configuration of the device, but there are other items to consider:
  • Updating older firmware may be more challenging, requiring the operator to be familiar with using applications like FTP and TELNET
  • The latest firmware requires more baseline system resources
  • Onboard flash storage of the device, depending on previous application, may now be considered "high mileage"
  • Onboard flash storage may be completely full of data logs, which must be offloaded via FTP or to their upload destination(s) to make room for the updates
  • A firmware update may not address a new issue if the device was working OK previously
When upgrading the firmware of our loggers, we always recommend backing up the configuration and any historical logs on the datalogger before proceeding with any firmware updates.

In newer firmware, the configuration can be pulled by logging into the web interface of the device, heading to System > Backup/Restore, and creating a backup file. Your PC will get a downloaded file from the logger.

With older firmware, configuration must be manually pulled from the device via FTP. Log into the web interface of the data logger and go to Networking > Setup. You will need to enable the FTP service. If you do not see an options for setting FTP or TELNET, then your firmware has those already enabled.

The location for important files to back up are are follows:

/mnt/main/sysconfig/modbusAll files in this directory; these contain the config of your Device Lis
/mnt/main/sysconfig/curvescaleAll files in this directory
/mnt/main/log/modbusAll files in this directory; these contain all recorded data that has not offloaded from the unit
/mnt/main/sysconfigloggerconfig.ini is the main data logger config minus the Device List. Does not include user login passwords.