Propagation
Propagation means relaying Common Status information up the hierarchical tree of the management platform. Information that is relayed up the hierarchy as a result of a change in the Common Status of an object is called status propagation.
Propagation is based on the parent-child-grandchild model. Each object in the system can have one or more parent objects and one or more child objects. Each child in the system can simultaneously propagate multiple active Common Status properties to a parent, such as alarm, fault, or technical exclusion.
The following table shows propagation from two different viewpoints.
Logical View of the System | Physical View of the System |
Building (parent) | A building node (parent) |
Floor in the building (child) | Field panel (child) |
Room on the floor (grandchild) | Point (grandchild) |
Temperature sensor in the room (great-grandchild) | - |
