I have a UDT called “Storage_Tank.” From that UDT, I have several instances: TK1, TK2, TK3, etc. Each instance has an OPC tag called “Gallons.” When I bring the “Gallons” tag up in the historian, “Gallons” from each instance is just named “Gallons.” So they’ll be labeled “Gallons”, “Gallons 1”, “Gallons 2”, “Gallons 3”, etc when they are plotted in the historian together. This gets a little confusing when look at the history for multiple tanks at the same time.
Is there any way to reference the instance name in the OPC tag name? So it’ll read “[Instance Name] [Tag Name]” or something like that in the historian?