Analytics & Calculations

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Trilinear Interpolation

The ability to utilize three columns as input for interpolation from an AF Lookup Table to determine the result for a fourth column could be beneficial for predictions and analysis. Currently, only linear and bilinear interpolation is possible fr...

Guest almost 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

2 VOTE

Function to extract Data Reference Type

We would like to be able to extract the data reference type (PI Point, None, Formula, Table Lookup, etc.) for an attribute using PI Analysis, similar to the TagType function for PI points.

Guest almost 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

2 VOTE

Improve usability of TagNum function

The TagNum function seems to be the only function that requires a double quote as opposed to single quotes. Many other TagXXX functions call for single quotes for its attribute or PI Point arguments.

Jinmo Yi almost 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

2 VOTE

Thorough Analysis service message logs

Having more thorough and detailed messages for the Analysis service in the event logs, especially upon startup. Environment details + Language settings that the Analysis service is using should be mentioned in the startup logs in order to bette...

Guest almost 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

2 VOTE

Allow Analysis timestamp override feature to output milliseconds

When using an analysis variable as the output timestamp, it appears that the actual output timestamp is floored to the nearest second, shaving off any millisecond count. This is not a huge priority on our end, but I wanted to ask in case it was a ...

Guest almost 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

2 VOTE

Remove tag need for Exit() and NoOutput() in analysis

Allow analysis outputting to Analysis Data Reference attributes to make use of the functions Exit() and NoOutput(), instead of requiring only PI Point Data Reference attributes.

Guest almost 2 years ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

1 VOTE

Give a warning or more descriptive error message when trying to recalculate when output point has relative time set

Recalculation doesn't work when Relative time is set on the output point. Currently the error given is the one shown in Unable to manually backfill analysis from PI System Explorer: One or more output attributes do not support recalculation. Which...

Guest about 1 year ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

1 VOTE

Expose AF Analytics performance statistics for notifications

The new statistics exposed in PI System Explorer in 2022 are helpful, but the next step should be exposing that information in a way that customers could actively monitor it and send proactive alerts. For example, this could include functionality ...

Laurie Dieffenbach over 1 year ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

1 VOTE

Add steam specific heat functions

Steam specific heat is useful in advanced analytics to monitor control valve performance. Isobaric and isochoric specific heat functions are a part of the 1997 IAPWS IF as are the rest of the steam functions already included.

Guest over 1 year ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

1 VOTE

Write arrays to time series pi points

When I have several similar attributes, I'd like to be able to store them as an array of values on a single pi point with the same timestamp. For example: I'm rolling up values for 10 different teams. I currently need 10 rollup analyses, 10 attrib...

Jason Novotny over 1 year ago in AVEVA™ PI Server / Analytics & Calculations 0 No Status

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