RSView Supervisory Edition Installation Guide

Setting up and managing data log files
In the File Management tab of the Data Log Models editor, you specify
when to start new files and when to delete old files. If the data log
model uses the ODBC format, data is added continually to the same
database, and this section does not apply. If the data log model uses file
sets, RSView logs the data to sets of files. You can set up an application
to create new file sets:
• periodically.
• at specified times.
• when a particular event occurs.
You can also select Never, in which case all data is logged to one file
set. Log files are saved in the folder you specify on the Paths tab.
Deleting file sets and ODBC database records
If a data log model uses file sets, you can set up file management to
delete file sets after a specified period or once a specified number of file
sets has been created. If you never want file sets deleted, clear the check
boxes under Delete Oldest Files.
Data log file sets are deleted only when a new file set is created. If the
application creates a new file set each day and deletes the oldest file set
every third day, there will be file sets for the three previous days’ data,
as well as a file set for the current day.
If a data log model uses the ODBC database format, you can purge old
records from the database using standard relational database tools or
SQL queries. You can also set up RSView to delete (purge) records in
the ODBC database after a specified time.
For more information, see Help.
Using data logging 13–7