driver-ConfigRule

This component of the NiagaraNetwork selects the histories to export from one or more remote stations and determines what happens in the receiving station.

Figure 35. Config Rule properties

To view these properties in a receiving station, expand Config > Drivers right–cllick the NiagaraNetwork, click Views > AX Property Sheet, expand History Policies and click Default Rule.

Property	Value	Description
Device Pattern	text (defaults to wildcard (*) which exports from all stations)	Identifies the names of station(s) with histories to export.
History Pattern Name	text (defaults to wildcard (*) which exports all histories)	Identifies the names of histories to export. NOTE: Both `Device Pattern` and `History Name Pattern` must apply for the rule to be used—otherwise, the receiving station evaluates the history in question against the next rule down (in order) under History Policies.
capacity	drop-down list	Defines the maximum number of history records allowed in the associated table. `Unlimited` enforces no limitation on the number of records. `Record Count` opens an additional property for defining the table limit.
fullPolicy	drop-down list	Defines what should happen if `Capacity` is set to `Record Count` and the specified record count is reached. `Roll` overwrites the oldest records with the newest ones. This ensures that the latest data are recorded. `Stop` terminates recording when the number of stored records reaches the specified capacity. Full policy has no effect if `Capacity` is `Unlimited`.