EFM: FeederID and ParentCircuitSourceID Fields

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Features that participate in a multi-tiered network and are downstream of subsources and/or ultimate sources require the FeederID1, FeederID2, and ParentCircuitSourceID fields. Extended Feeder Manager (EFM) automatically assigns values to these fields; first to the FeederID fields and then the ParentCircuitSourceID field. The user should never need to modify the ParentCircuitSourceID, FeederID or CircuitSourceID values. In fact, these fields should be set as not editable in ArcCatalog.

NOTE: Ultimate Sources and Subsources

Multi-tiered networks include ultimate sources and subsources. Ultimate sources are the furthest upstream feature in a network. If a feature is an ultimate source, it will have a related circuit source. Subsources do not have related circuit sources.

How Downstream Features Receive FeederID Values

The flow chart below describes the logic Feeder Manager and EFM use when assigning values to the FeederID and FeederID2 fields in a feature downstream from subsources and/or ultimate sources

NOTE: This is the only way FeederID values are assigned to downstream features. Other properties, such as phase, do not influence the feature's FeederID values.

How EFM Assigns The ParentCircuitSourceID Values to Downstream Features

The flow chart below describes the logic EFM uses when assigning a value to the ParentCircuitSourceID field in a feature downstream from subsources and/or ultimate sources.

NOTE: GlobalIDs: EFM supports the use of GlobalIDs, useful if you are running replication. If the features in the network use GlobalIDs, use the ParentCircuitSourceGUID class model name instead of ParentCircuitSourceID. The values of ParentCircuitSourceGUIDs are calculated in the same way as ParentCircuitSourceIDs.
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