Switching between screens in CHMI 5.0 is slow
I have developed screens in CHMI 5.0 scada. I have used 4 GB RAM and VGA graphics card for my system. Once i open the operator workplace and switch between screens i experience slow down in operation. Each time i switch between the screens a blank screen holds up for a second and then the screen opens. This even happens for the faceplate. During installation all the system hardware requirements were full filled. Such as
1. It checks for free virtual memory
2. 4 GB RAM size requirement
Inspite of meeting the requirements i am still unable to trace out the reason for slow switching between screens. Kindly someone clarify please.
Voted best answer
Does calling and swapping between two empty Graphic Displays also take long time?
Try dissecting the display, e.g. by making a copy of a slow one and then tear off control after control until you find what takes time.
The same applies for faceplates; try configuring an empty faceplate element and measure its performance.
Perhaps something in your graphic design is slow to execute? Have you implemented VB code performing lenghty calls?
The Diagnostic window (right click inside a runnig a graphic element, display or faceplate element and select Diagnostics...) can also be used to track down what's slow.
You can also contact your regional ABB support center for advice.
Even if your all hardware requirements are upto the mark then also graphics may take time to load due to several other reasons. I f you add a lot of items on graphic page then it will obviously slow down the navigaion.
Just right click on your graphic page and select Diagnostics option. There you will find 4 tabs like Summay, Timing, Errors & warnings, and Subscription.
In Summary tab itself, just check how many no. of items are there under Subscription Subgroup.
Generally, 800 items on one graphic page take 1 sec to load. 1600 items take 2sec and so on.
Also, check for failed items and unresolved items under Errors and Warnings tab. This also affects the performance.