This section covers typical question and issues, and how to solve them.
Timestamps out of synch
If timestamps are out of sync from a source system, there are 2 options perform to overcome, which can be agreed with our support team:
- Correct the clock to show UTC in source system.
- Override timestamp on edge computer with a UTC timestamp from NTP server available in edge.
The options above is in preferred order.
Known issue - 495548
646214 time_weighted_average/time_weighted_integral will produce wrong result for first value if previous time interval is empty
The advanced aggregation methods "time_weighted_average" and "time_weigted_integral" is using the last value from the previous interval to correctly calculate the value in the first interval provided by the API consumer. This is depending there is a value in the previous interval. If there is no value in the previous interval, the calculation of the first value will not give correct results.
Recommendation is to use time intervals that are not likely to be empty, e.g. 5, or 10 minutes.
644648 Assetmodel API (nodes/browse) != operator is not supporting
The operator != (not equals) is listed as a supported operator, but requests fail as "Bad request" when used.