Hey guys!
I'm working on a Flow Rig at the moment and I need to display and trend data. The data that I am dealing with is the flow in L/min.
I am using DeltaV and have set up a trend graph but very unsure on how to use it, as in must I set parameters to allow me to do specific task?
Also I need to export all the data to excel??
Thanks for your help.
As far as I know, exporting historian data to excel can only be achieved through the Continuous Historian Excel Add-in. (A client can be written against the OPCHDA server or Continuous Historian Webservice, however also, but this is all custom work).
I'm not sure I understand the question about setup of the trend graph, but maybe the following links will help:
www3.emersonprocess.com/.../embeddedtrendobject.htm
www3.emersonprocess.com/.../vba_manipulating_charts.htm
www3.emersonprocess.com/.../trendlinks.html