Appendix B Operating Files and Directory Structure
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srv_hist.df
The Service History database (srv_hist.df file) contains a service record of the
monitor over a set time. This database maintains a summary of overall service
history, including out-of-service times, Alarm Tests, and Service Menu usage as
well as a summary of detector faults for each detector individually. This data is
viewed through the F2 – Service History screen, which also permits clearing the
file and starting a new data set. The information can be printed using the F6 –
Printout Menu.
Temporary Files
Two performance related files are maintained in the
D:\MonitorProgram\TEMPDATA directory
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. They are:
bkgnd.df
The bkgnd.df file contains the individual background update counts for the last
1080 background collections, for each installed detector. This information
reflects approximately 90 minutes of background readings (assuming 5 seconds
per count), and is dependent on the Background Collect Time selected in the F2
– Wait Timeouts screen. View the data for each individual detector using the F3
– Background History screen.
A check exists for low-level software problems with bkgnd.df. If the file returns
an unable to access fault, when memory mapped, a message box stating,
“Detector Background (TEMPDATA\bkgnd.df) Content problem, delete and
scan disk”, delete this file to fix the problem. The file is also reset by Ctrl+F10 –
Factory Setup Menu, F1 – Model Selection – Have Program Start Clear All
Faults set to “YES”.
d_status.df
The d_status.df file contains the current error status and conditional service state
for each detection zone.
A check exists for low-level software problems with d_status.df. If the file
returns an unable to access fault, when memory mapped, a message box stating,
“Detector System Status (TEMPDATA\d_status.df) Content problem, delete and
scan disk”, delete this file to fix the problem. The file is also reset by Ctrl+F10 –
Factory Setup Menu, F1 – Model Selection – Have Program Start Clear All
Faults set to “YES”.
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These files are regenerated automatically and do not need to be backed up. BKGND.DF in particular is rather large
(35,471,360 bytes). In addition, when the SOFT-LDB option is installed and enabled, files are also temporarily placed
here to be loaded into the database. Then they are deleted when database has finished loading their contents.
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