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Event Log Data Folio

Event Log Control Panel Settings

The event log folio control panel is arranged into groups of related tasks. Each group has its own page on the control panel.

Tip:  There is a horizontal splitter bar directly above the Main button. If you drag it as far up as it will go, all of the pages of the panel will be accessed by large buttons. If you drag it all the way down, all of the pages will be accessed by small icons. Positions in between allow you to use some large buttons and some small icons. See Control Panels.

The Main page includes the following settings:

Note that when you select the Use OTSF column check box on the Other page of the control panel, the software can analyze only one level at a time.

The System is new on start date check box indicates that the system has never been used before and that the start date you entered is also the same calendar date that the system started operating. This setting affects how the software classifies data when it converts the log entries to failure/suspension data. If the system is new, then the times to first occurrence of every event are considered to be complete data (F) because the exact time-to-event is known. If the system is not new, then the times to first occurrence of every event are considered to be right censored data (S) because the amount of time that the system operated before the observation period began is not known.

Tip: As an alternative, you can enter the start date/time and end date/time of the observation period for each system in a separate window by clicking the Systems Setup icon on the Main page of the control panel. The larger window makes it easier to enter information for several systems all at once. This option is available only if you have selected the Use System column check box on the Other page of the folio’s control panel.

If your system does not operate on a 24/7 basis, you may also want to define the shift schedule of the system so that you obtain accurate calculations for the failure and repair times. See Set Shift Pattern.

The folio tools are arranged on the left side of the control panel:

  Calculate converts the log entries into failure/repair times and then fits distributions to the converted data. In addition, it calculates the total uptime and downtime of the components. This tool is also available by choosing Event Log > Analysis > Calculate.

  Set Shift Pattern opens the Shift Pattern window, which allows you specify the days and times when the system is operating. This tool is also available by choosing Event Log > Actions and Settings > Set Shift Pattern.

  System Setup opens the System Setup window, which allows you to enter the period you started and stopped collecting the event log data for each unique system identified in the data sheet. This option is available only if you have selected the Use System column check box on the Other page of the folio’s control panel.

  Transfer to Selected Folio opens the Transfer Life Data window, which allows you transfer the time-to-failure and time-to-repair data to an existing Weibull++ standard folio. This tool is also available by choosing Event Log > Transfer Life Data > Transfer Life Data to Selected Folio.

  Transfer to New Folio creates a Weibull++ standard folio and transfers all the time-to-failure and time-to-repair data to the new folio. This tool is also available by choosing Event Log > Transfer Life Data > Transfer Life Data to New Folio.

Analysis Page

The Analysis page allows you to specify how the software will fit a distribution to the failure and repair data:

Other Page

The Other page includes optional settings that allow you to format the event log data sheet.

To save your current settings for all new event log folios, click the Set as Default button. To automatically apply the saved settings to any existing event log folio, click Load Default.

 

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