7/24/2020 7:16 AM | |
Joined: 10/3/2010 Last visit: 9/20/2024 Posts: 1562 Rating: (191) |
Reading 3600 external OPC tags in a loop with VBS can take a while. Look for a document "performance.chm", usually located under C:\Program Files (x86)\Siemens\WinCC\Documents\english\performance.chm it shows some performance data (difference between vbs and ansi-c). You will see that reading 1000 internal tags takes about 920 milliseconds, depending on your hardware. External tags take a longer time and OPC-tags might be even slower. Maybe you can try to use the "TagSet"-object in your script to read a several groups of tags instead of a loop of 3600 tags. (described in scripting manual) |
B r g d s , |
|
Follow us on