Measurements
Available when adding a measurement are the following fieldsets:
General
Name
Description: The name of the measurement. Must be unique within its time series database.
Description
Description: A description of your measurement. (Optional)
Collector
Description: The collector this measurement belongs to. Selecting a collector might make more fields and settings appear.
Database
Description: The database where this measurement's data will be stored. This might be prefilled if the selected collector has a default database.
Datatype
Description: The type of this measurements data. Eg: string, number, boolean, etc..
Measurements with the "raw" datatype are being phased out starting in V8. They can still be created, but can no longer be used as an input for calculations, events...
Engineering specifications
The engineering specifications can be used to give more meaning the values and set limits on them. Furthermore, the Factry Historian Datasource plugin will automatically fetch these settings for labeling of axes, scaling, and configuring thresholds.
Consult the List of Units of Measurement page for more details on the supported units.
UoM
Description: The unit of measurement of this measurement. (Optional)
ValueMin
Description: The minimum expected value of the measurement. (Optional)
ValueMax
Description: The maximum expected value of the measurement. (Optional)
LimitLo
Description: The low threshold of the measurement. (Optional)
LimitHi
Description: The high threshold of the measurement (Optional)
Tags
Description: Tags will be stored for every data point written to the time series database. In most cases, we recommended using Labels instead.
Metadata
Description: Metadata can be used to store additional information about the measurement, this information is not stored in the time series database.
Labels
Description: Labels can be used to group measurements together and can be used to selective forward measurements using sinkssinks and forwardersforwarders. A measurement can have multiple labels.