Easy Chart Export Duplicate Timestamps

Ignition
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1

I have an Easy Chart historical trend that I've exported to excel. For the t_stamp column, why are there two entries for every time with 2 different values?

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The trend resolution is set to fixed, 300. Interpolation is on. With the duplicates I have 600 entries. Is one of these entries the last logged value before that time and the other one the interpolated value?

2

That looks like min/max aggregation. That is documented to deliver two values per timestamp.

3

Thanks Phil.

Sample Size and Aggregation Mode | Ignition User Manual.