Specifications

18 – Configuring Downtime Analysis
376 R400
About Downtime Analysis
When an item of plant equipment goes into “delay,” an entry is made in a file in
the server database called the delay file. Each delay entry includes:
• A description of the item of equipment
• The start time and date of the delay
• A downtime category code
• A downtime reason code
Operators are alerted to delays by the yellow flashing Delay field in Status Line.
They can then view details of the delay and acknowledge this event by calling up
the Downtime Summary display.
When the item of equipment returns to normal, the delay is time-stamped as
completed. When completed delays are acknowledged, they are removed from
the Downtime Summary display. Delays that are acknowledged before they are
completed are removed automatically when the delay is eventually completed.
To call up the Downtime Summary, go to the System Menu display and choose
Downtime.
The number of delays that can be shown on the Downtime Summary is based on
database sizing. For information about database sizing, see the Installation Guide.
Using Summation to Analyze Downtime
Downtime can also be analyzed by summarizing downtimes by area, downtime
category, and delay state. Downtime can be summarized for the last hour, day,
shift, week, month, quarter, or year.
These totals are stored in analog points in the database and are available for
reporting (see “Configuring Downtime Summation” on page 380).
plscpcg.book Page 376 Monday, May 28, 2001 10:11 AM