niagaraVirtual-DefaultNiagaraVirtualCache

This component represents the NiagaraNetwork’s virtual component cache. It provides a default Virtual Cache View of persisted cached data (in file or files specified by the network’s virtual Cache Policy).

Figure 1. Default Niagara Virtual Cache properties


To access these properties, expand Config > Drivers, right-click the NiagaraNetwork and click Views > AX Property Sheet, expand Virtual PoliciesCache Policy, right-click Cache and click Views > AX Property Sheet.

PropertyValueDescription
Persist Cachetrue (default), falseSlot data for virtual components is stored persistently in cacheN.nva file(s) in the specified “Cache Directory”. Typically these file(s) are created upon station shutdown. If set to false, the virtual cache is not persisted.
Persist Cachetrue default or falseEnables and disables cache for virtual components.
Cache DirectoryDirectory Chooser (defaults to file:^niagaraDriver_nVirtual, null)Defines the ORD to the folder in which the driver creates one or more cacheN.nva file(s) when Persist Cache is set to true.