ClearSCADA can be configured to store data historically for:
- Many types of Point
- Master station Accumulators.
In order for ClearSCADA to store a point's or accumulator's data historically, the Historic feature has to be enabled on the point’s or accumulator’s configuration Form. For information on configuring Historic storage for a point, see Defining Historic Details for a Point in the ClearSCADA Guide to Core Point Configuration. For information on configuration Historic storage for an accumulator, see Tabs on Accumulator Forms in the ClearSCADA Guide to Core Configuration.
In order for data to be stored in ClearSCADA's historian, that data must meet the historic storage criteria of the individual point or accumulator. This includes meeting any Compression and/or Historic Data Filter criteria that might be configured for that point or accumulator. For more information see:
- Historic Data Compression
- Point Updates to which Compression Settings do not Apply
- Accumulator Updates to which Historic Data Compression Settings do not Apply.
For points and accumulators for which ClearSCADA does store data historically, you can display that data as a Historic List, or a Historic Trend. (For information on Historic Trends, see the ClearSCADA Guide to Trends.)
The topics in this section explain how to use the Historic List’s features and interpret the information that a Historic List provides. For more information, see the topics that are listed in the gray footer section at the bottom of this topic. Select the relevant entry to display the topic that you require. Also see:
Various properties affect the way in which historic information is stored or presented on a ClearSCADA system. Many of these properties can be configured by system administrators and high-level engineers. Such configuration is explained in the following sections within this guide: