Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 213)

Configuring data logging
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7–13
Digits After Decimal Point
Type the number of digits after the decimal point that are to be
stored for floating point numbers. Use this field and the Number
of Digits field to achieve the precision you want. For example, if
your process has very large numbers, you can increase the total
number of digits and reduce the number of digits after the decimal
point.
Number of Characters in String
Type the number of characters to be logged for all string tags in the
model.
Log Milliseconds in Separate Field
Specify whether to log the millisecond portion of the time in a
separate field in the .dbf file. If you do not select this option the
milliseconds are logged in the time field.
When you have finished specifying options for the dBASE IV
storage format, go to “Setting up logging paths” on page 7-20.
6. If you chose the ODBC storage format in step 4, specify the
ODBC data source.