Eg: (Appendix A.19, Part 13) Historian 1, Time Slice: 12:00:32.000, Count Value in the table is null.
Historian1
Timestamp value StatusCode
12:00:30 30 Raw, Good
12:00:40 40 Raw, Bad
12:00:50 50 Raw, Good

Between the Interval 32 to 48 there is only one value(40) that is Bad.

There are 2 statements in the Spec (Part 12: Section 5.4.4.19) that needs clarification:

1. If one or more raw values are non-good, they are not included in the count.
2. If no good data exists for an interval, the count is zero.

When you have only one value and when you do not include the value, why is the count null? Shouldn't the count be zero?

Count retrieves the number of raw values over the interval. How can the count be null when you are looking for the number of raw values?