METHOD FOR CONTROLLING A GRID OF PLANTS

摘要

A method for controlling a grid of plants, each plant having a distributed control system (2) with operation and monitoring (18) functionality, comprising the step of interconnecting said distributed control systems (2) via a network, shall allow monitoring and controlling of the entire grid and be flexible regarding the inclusion of further units and the modification of already existing units. This is achieved by providing a hierarchical tree structure (1) having at least two levels (LN) for said network, assigning each distributed control system (2) to a node of the tree structure (1), receiving a data request at a parent node control system (2, 4), determining whether the data request can be resolved by said parent node control system (2, 4). If the data request can be resolved by said parent node, a reply is sent to the data request. If the data request cannot be resolved by said parent node, the data request is forwarded to at least one of the children nodes of said parent node.