Select PlantStruxure reference architectures? - Schneider Electric ...

3 – Global ref. archi.The following figure describes an example of PlantStruxure large process automation system:ER P SystemBatchSystemHistorianManufacturingExecutionSystemEngineeringWorkstation/System serversAssetmanagementR edundantSCADAServersGlobal Operators workstationsCluster 1 Cluster 2FirewallWiFiDual Ethernet Control RingFirewallPACPACPACDevicenetworkEthernetProfibusPAEthernetFOEthernetFigure 14: Example of large process architectureThis architecture allows a significant increase in the level of availability. The dual Ethernet controlring implementation of such topology implies that a SCADA server must be equipped with twocommunication boards, and reciprocally each PAC must be allotted two Ethernet ports.The dual ring topology simply replicates the chosen type of single architecture (ring, ring couplingor ring nesting) and, therefore, each terminal node has dual network access. Ring coupling canalso be proposed to increase the level of availability.The Extended ConneXium switches (or DRS – Dual Ring Switch) allow easy management andcoupling of two Ethernet rings.The control room and functional unit levels are described in the following chapters.Security is also a key requirement that is fully integrated in this level of architecture with firewallsto protect access to the control room and to functional units.© 2012 Schneider Electric All Rights Reserved31