I was wondering if there is a limitation on the PBSymLib.Trend object as far as calling
When I cycle through the traces on a Trend object that has more than 26 traces, every tag starting with the 27th trace will error with:GetTraceValue(nValueIndex, vrTimeOfValue, vrStatus)
"Run-time exception thrown : System.Runtime.InteropServices.COMException - Number submitted was outside of acceptable range for the value."
Also confirmed that error when trying to create Watch values for any trace number past 26. When adding tags to a trend in ProcessBook, though, it says the limit is 50 tags. Are these numbers supposed to match? How can I call GetTraceValue(...) on the remaining 24 traces?
There aren't any problems with the tags as they plot properly and if I delete the 27th trace, the "new" 27th trace is the first one to error. These are all analog tags.
I am using ProcessBook v188.8.131.52 with PI-SDK 184.108.40.2068, Visual Basic 2008.