Rockwell-automation Migrating PanelView Enhanced Terminal Applications User Manual download pdf (Page 125)

Publication 2711P-QS001A-EN-P - October 2007 125

Measure and Improve Runtime Application Performance Chapter 9

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 terminal.

If possible, place your PanelView ‘e’ terminal and the new PanelView

Plus terminal side by side. Run the original PanelView ‘e’ application

and the converted PanelView Plus application at the same time. You

should be able to notice any performance issues when changing

displays.

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

terminal.

2. Use a stopwatch in the next steps to record the time it takes to

change from one display to another display.

3. At any display, press the Display Change button 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 ‘e’ 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 will take to load the display.

If performance is slower for some displays in the PanelView Plus

application, you can:

• adjust the maximum tag update rate for these displays.

• reduce the number of tags used on these displays.

IMPORTANT

Cycle through all displays at least twice. The first

time you open a display it loads slower than

subsequent displays because tag information is

cached into memory after a display is opened.

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Rockwell-automation Migrating PanelView Enhanced Terminal Applications User Manual Page 125