Quickstart Guide

The OMC-048 data logger connects to a PC via the USB-C cable. Windows promts the device as a mass storage device and a COM device. The COM device can be found via the device manager.

A terminal application should be used to receive datalogger application activity, or us the REPL mode.

In case the application is running:
  • Ctrl-C: Stops the application to enter REPL (CTRL-SHIFT-C for OMC-terminal)

  • Ctrl-D: Executes the application from start.

Flashing the firmware

The firmware files (.bin) files are provided by observator. If a valid firmware is placed in the device root and the device is restarted, it shall automatically update the firmware. For restart you have 3 options:

  1. via the REPL: obs.hard_reset (preferable)

  2. use reset button

  3. power cycle

Warning: Do not turn off the power in case the firmware is being flashed!. The device reboots from the new firmware automatically.

The config.txt file

The config.txt file is found in the root of the device. It contains the configurational settings of the data logger application.

The data folder

The ‘data’ folder contains the log files created.

When FTP is disabled:

  • Log files are stored in the ‘data’ folder in folders which are created daily: [YYMMDD]

  • Log files are named: OMC-045_[system_id]_[serialnumber]_[YYMMDD]_[HHMMSS].txt

When FTP is enabled:

  • Log files are stored in the data folder until they are transmitted.

  • In case files are succesfully transmitted via FTP the files are stored in the sub-directory ‘transmitted’ in daily folders.

  • In case files are not (yet) succesfully transmitted via FTP, the files remain in the ‘data’ folder. These shall be transmitted after the most recent log file is succesfully transmitted.

The script folder

The script folder contains the application and module code files which are required for operation.

The system folder

The system folder contains the firmware files which had been flashed to this specific logger. The sub-folder ‘log’ contains the diagnostic system log files. These files are created daily in case one or more system log events occured that day. system log files are named: [YYYY-MM-DD]_log.txt