All I have used this topic
http://advancedhmi.com/forum/index.php?topic=650.msg3009#msg3009 to get my trend chart like I want it. I am using it instead of the chart by sampling due to size constraints on the screen. Everything works good however the poll rate is incorrect. I am using the micro 820 for testing but the actual field hardware is compactlogix. poll rate is set to 10000 the chart updates exactly every 5 seconds, poll rate set to 15000 the chart updates 10 seconds then 5 seconds, I thought I was seeing things so i built some traps and I was not seeing things. I need to keep 2 hours worth of data on the chart. Kind of lost here. using 3.99a
Thanks
Jody
