Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 309)

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RSView32 User’s Guide
Specifying caching
Cache After Displaying
Select Yes to load the graphic display into the display cache when it is
displayed for the first time. Placing the graphic in the cache makes
subsequent displays of the graphic faster because it does not have to
be read from disk. You can have up to 200 graphic displays in the
cache. We suggest you use this option for large or complex displays
only, to minimize the use of system resources.
Select No if you don’t want RSView32 to load the display into the
display cache.
3.
Always Updating
Check this box to keep the cached display up-to-date. For example,
choose this option to update trend data continuously for the display,
even when the display is not visible. This option also makes
subsequent displays faster.
Choosing this option affects the behavior of the display’s startup and
shutdown commands. See “Specifying startup and shutdown
commands” on page 11-23 for more information.
Cached displays consume memory. Once Windows consumes all
physical memory, it is forced to swap to disk, which slows all system
activities.
IMPORTANT
Always updating a cached display can cause added
communications overhead because data will be retrieved for tags
whose values would not otherwise be needed. IMPORTANT