The DeltaV OPC History Server has a browser that exposes all parameters stored in the DeltaV Continuous Historian. The browser supports the use of "wild cards" for string filters to assist in finding the stored parameters. A single character may be filtered using the question mark character (?). For example, requesting TIC-100?/PID1/PV.CV will return TIC-1000/PID1/PV.CV, TIC-1001/PID1/PV.CV, etc.
Multiple characters may be filtered by the asterisk character (*). For example, requesting TIC-1001/PID1/*.CV will return TIC-1001/PID1/OUT.CV, TIC-1001/PID1/PV.CV, and TIC-1001/PID1/SP.CV.
In addition, the logical operators equal to (=) and not equal to (!=) may be used with the wild card filters to further refine the parameter search.