Allen-Bradley PanelView Plus 7, Руководство по миграции

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96 Rockwell Automation Publication 2711P-AP006C-EN-P - November 2018
Chapter 9 Optimize Runtime Performance
Measure Performance of
Display Changes During performance benchmarking, you may want to measure the time it takes
for the application to change from one display to another. It is important that
the operator experiences the same display feedback, if not better, on the
PanelView Plus 7 terminal.
If possible, place your PanelView Standard terminal and the new PanelView
Plus 7 terminal side by side. Run the original PanelView Standard application
and the converted PanelView Plus 7 application simultaneously.
Follow these steps to measure the length of time it takes to change from one
display to another in the application.
1. Load and run your converted application on the PanelView Plus 7
terminal.
2. To record the time it takes to change from one display to another display,
use a stopwatch in the next steps.
3. On any display, press the button that results in a display change and start
recording the time.
4. Stop recording the time after all tag information is loaded on the next
display.
5. Repeat steps 3 and 4 until you have recorded the times for all displays in
the application.
6. If possible, repeat this procedure for the same application on the
PanelView Standard terminal.
In a FactoryTalk View ME application, each display can have a maximum of
1000 tag connections assigned. The more tag connections a display has, the
longer it takes to load the display.
If performance is slower for some displays in the PanelView Plus 7 application,
you can do one of the following:
• Adjust the maximum tag update rate for these displays
• Reduce the number of tags that are used on these displays
IMPORTANT Cycle through all displays at least twice. The first time that you open a
display it loads slower than subsequent displays because tag information is
cached into memory after a display is opened.