Error Retrieving DVR Data

Owned by Ricky Villa
Last updated: Aug 11, 2021 by Kimberly Cruz (Unlicensed)
2 min read

If you are you getting an error when trying to use the Playback feature. It means you most likely have enums and/or strings points in your equipment(s) that are being used in your graphic. To resolve this issue, you have to add a hisInterpolate:cov tag to the enums and/or string points. This is required because they are seen as multi-state values and being treated as numbers, which means linear interpolation. We need to override this default behavior, which you do by adding hisInterpolate:cov tag.

If you are you getting an error when trying to use the Playback feature. It means you most likely have enums and/or strings points in your equipment(s) that are being used in your graphic.

To resolve this issue, you have to add a hisInterpolate:cov tag to the enums and/or string points.

  • This is required because they are seen as multi-state values and being treated as numbers, which means linear interpolation.We need to override this default behavior, which you do by adding hisInterpolate:cov tag.



An easy way to add this to all enum and string points is to go to do the following: 

1. The user will have to select on the Folio application which is under the Advanced Apps

2. Once Folio has launched, the user can select on the Tools button  located on the right

  • In the tool list, navigate towards the following: Advanced > Batch Tagging > Apply Batch Tags

3. Then in the Apply Batch Tags window, you need to add this as the filter: kind=="Str" and point

  • For the tag to add it is hisInterpolate:"cov" like below.

4. After that, you will be able to use the Playback again on the graphics.