Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 202)

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RSView32 User’s Guide
How to use multiple data log models
At runtime, up to 400 models can run simultaneously. Use multiple
data log models to:
store related information in separate files
log groups of tags at different rates
log groups of tags based on events
Summary of steps
To set up a data log model, specify:
what format to use
where to store data log data (primary and secondary paths)
when to create and delete log data
what actions will trigger logging
which tags to log data for
what to call the model
About data log storage formats
For easy access, logged data is stored in either dBASE IV (.dbf)
format or using the ODBC connectivity standard.
If you use the dBASE IV format, data log files are created in sets. The
number of files in a set depends on the .dbf file format you choose
(narrow or wide). Each file in the set contains a particular type of data.
1.
If you use the ODBC format, tag values are logged to tables in an
ODBC database. This allows you to use third-party ODBC-compliant