Hello there,

We are in the process of moving from an old system to AF for one of our customers. That old system also contains 2D correlation tables which are used to calculate the density for one of their products.

In that particular system they simply input the X and Y value (temperature and pressure) and the density rolls out. So there are three columns to the table namely: X, Y and Result

I imported the 2D table into AF but I don't see how I can interpolate since two interpolation calls don't seem to be allowed in one formula.

Am I missing something? Or does anyone have any suggestions as to how I could tackle this?

P.S. If this post is not in the right place then feel free to move it. I really couldn't find a better place ;)

Hello Vincent,

Currently, as far as I know, there isn't possible to do this without some custom development. Some time ago we've developed a custom AF Data Reference (as I remember, even for AF 1.x) to do similar task. You can follow this way or wait for OSIsoft to implement it in furure version of AF (1D interpolation is already on its way to release).