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Creating files when a particular event occurs, Never creating new files – Rockwell Automation 9301 Series RSView32 Users Guide User Manual

Page 230

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7–30

RSView32 User’s Guide

Creating files when a particular event occurs

1.

Click On Event.

2.

In the Expression field, create the expression that will trigger
creation of a new file. For details about expressions, see
Chapter 14, Creating expressions.

You can use on-event logging to create sets of data for use with file-
based trending. For more information, see Chapter 13, Configuring
trends
.

Example: Creating a new file for a new shift

You can set up your project so it creates a new log file at the end of a
shift or batch process. For example, create a tag called NextShift. In
the Data Log Setup editor, click On Event and type NextShift as the
expression.

When the tag evaluates to true, a new data log file is created to store
the data from the new shift.

Never creating new files

Click Never. Logged data is added to a single file.

To manage disk space if a log file grows too large, stop data logging,
move or delete the data log file, and then restart data logging. You
cannot delete a log file while data is being logged to it. For details
about how to monitor disk space, see “Monitoring disk space” on
page 18-14.