Each class can contain two categories of field—Configuration fields and Data fields. The configuration fields store the data that defines the setup of each database item, and the data fields store the values for the database items.
Both the configuration fields and the data fields can be any of the following field types:
- String
- StlString
- Color
- Reference
- Unsigned Byte
- Signed Word
- Unsigned Word
- Signed Long
- Unsigned Long
- Boolean
- Float
- Double
- Time.
The types of field (listed above) are described in more detail in the Class Information section (you can use the ClearSCADA Database Schema to display information about each field that is in a class).
Aggregates and Alarm Conditions also provide access to additional fields. For aggregates, the fields can be configuration fields or data fields but alarm conditions can only provide access to data fields. Many of the fields for alarm conditions are read-only and relate to specific alarm data, but there are two notable exceptions: Disabled and Accepted (see Alarm Conditions Section).