Rockwell-automation 9301 Series RSView32 Users Guide Uživatelský manuál Strana 234

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7–34 RSView32 User’s Guide
maximum of 11 data log file sets at any time—10 old ones and the
current set. When a new set is started, the oldest file set is deleted.
These options apply to .dbf files on the primary path only, not the
files on the secondary path. RSView32 deletes files on the
secondary path only when the DataLogMergeToPrimary
command is issued.
When you have finished specifying options for deleting .dbf files,
go to “Specifying when to log data” on page 7-35.
3. If you are using ODBC storage format, under Purge Oldest
Records in ODBC Database, select the After Maximum Time
check box. Type a number to specify when to delete the records,
and select whether the number is measured in days, weeks, or
months.
If you do not want records deleted, leave the check box blank.
This option purges records from the ODBC database only, not
from the backup files. RSView32 deletes ODBC backup files only
when the DataLogMergeToPrimary command is issued.
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