Which tag types are supported by TrendMiner?
The table below lists the different tag types supported by TrendMiner. When using a TrendMiner supported connector, the tag types used for the historian are mapped automatically to one of the supported ones. For more information, see How does TrendMiner determine tag type?.
Tag type | Description | Interpolation |
|---|---|---|
ANALOG | Tags of this type will show a linear interpolation between data points and is typically used for measurements like temperature, flow rate, pressure, etc. Analog tags have numerical values. | LINEAR |
DISCRETE | Tags of this type will be stepped interpolated. I.e. a tag will hold its value constant until it changes like a controller’s set point. Discrete tags have numerical values. | STEPPED |
DIGITAL | Tags of this type will show a step interpolation and are used when referring to things like Phases, Product Name, or any other value containing a string or text characters. For tags with type DIGITAL all potential values the tag can have can be enumerated and synced to TrendMiner. Digital tags have string values. | STEPPED |
STRING | Tags of this type will show a step interpolation and are used when referring to things like Batch ID or any other value containing a string or text characters. Tags with type STRING can have any string value and are not bound to a limited set of values. | STEPPED |
Examples of Tag Types
 Analog |  Discrete |
 Digital |  String |