Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 120)

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RSView32 User’s Guide
How to use multiple derived tag files
You can create multiple derived tag files. At runtime, up to 20 derived
tag files containing a maximum of 1,000 tags can run simultaneously.
Use multiple derived tag files to:
group derived tags that need to be evaluated at different rates
group derived tags that are active only when a particular graphic
display is active
Summary of steps
The main steps for configuring derived tags are:
set up the evaluation interval for the derived tag file in the Derived
Tag Setup dialog box
create the derived tags in the Derived Tags editor