As a result, any downstream connection to other stations, which can be routed through a direct subordinate
Niagara station, allows those stations to be reached by the
Supervisor. For the
Supervisor to see the mid-tier stations, it is not necessary to push information directly to the
Supervisor via proxy points. However,
Niagara virtuals need to be enabled and properly configured for access control along the entire route to each reachable station.
You can then configure the system indexing operation on the
Supervisor to crawl all reachable stations in addition to the direct subordinate stations by querying for entities that match a certain
criteria. It will then store those indexed entities (components, tags, relations) in the
Supervisor’s system database.
Requirements: Any stations that store the SystemDb, such as the top-most station, must be a
Supervisor station. The top-most and mid-tier stations must be upgraded to
Niagara 4.13 or later. You can index
Niagara 4.4 stations and later as long as they have an edge-most position within the network.
