To enable Periodic Input for Data Stores and Settings, you first need to configure the Time Frame for the repositories or the repository group. A Time Frame can be configured for a Data Store Group or Data Stores and Settings individually. Having configured a valid Time Frame, you need to add Time Frame Measure Columns to the repository.
Time Frame Measure Columns are special numeric columns with date/time metadata, which in conjunction with the Time Frame, associates the values of the column with an actual date/time.
When using Periodic Input, you would usually enable Rollover for transitioning to a new period when the current period is completed.