Time Average Aggreagte Clarificattions|OPC UA Standard|Forum|OPC Foundation

Hello,

With reference to Time Average description provided in section 5.4.3.6 , I have the following questions.

Note that this calculation always uses a sloped line between points.

1. Does this mean Time Average always uses Sloped interpolation?

2. If so , do we need to ignore the server settings( Stepped=true?)

3.The time average computations (formulas) done Historian 2 & Historian 3 inputs are not identical.

Historian 3 Configuration (Stepped=true, Sloped Extrapolation =true)

TimeStamp,Value,StatusCode

00:00:00,,Bad_NoData

00:00:02,10,Raw_Good

00:00:25,20,Raw_Good

00:00:28,25,Raw_Good

00:00:39,30,Raw_Good

Using the above input data, could you please compute Time Average for intervals 00:00:20 and 00:00:25?

I am unable to justify the documented results for these 2 intervals

Thanks  & Regards

Samba