Managing Trends
For an overview, watch the video below. For details, consult the following written information and linked subsections.
About Trends
Trends show historical point data that can be tracked, saved, and exported. Points sharing a graph can be of different types (Analog, Binary, or Multi-State).
The interval at which trend points are read can be changed from the default (15 minutes). For example, the interval might be made longer to reduce data consumption through cellular connections or shorter to increase the update rate for critical environmental monitoring. See Point Update Wait Interval (Minutes) in Settings 
> Protocols.