Select PlantStruxure reference architectures? - Schneider Electric ...
Select PlantStruxure reference architectures? - Schneider Electric ... Select PlantStruxure reference architectures? - Schneider Electric ...
3 – Global ref. archi.Two types of plant network architecture are usually proposed and supported by PlantStruxurenetworking system:Flat network architecture: The plant, the control and the device networks are physically andlogically on the same network. This network architecture is a good fit for a compact or smallautomation system. The centralized PlantStruxure reference architecture uses this type ofnetwork.Layered network architecture: It splits the topology into different levels. A separation betweenthe plant network, the control network and the field network is proposed in this case. Thisnetwork architecture is a good fit for a medium or large automation system and is covered byPlantStruxure modular and large process reference architectures.The following table describes the main topologies from which to choose:Topology Limitations Advantages DisadvantagesBusThe traffic must flowserially; therefore thebandwidth is not usedefficientlyCost-effective solutionIf a switch becomesinoperative,communication is lostStarEfficient use of bandwidthTreeCable intensive anddistancesas traffic is spread acrossthe star – this is thepreferred topology whenthere is no need forIf the main switchbecomes inoperativecommunication is lostredundancyRingAuto-configuration if usedBehavior is quitewith self-healing protocol.The auto-configurationDual ringsimilar to the bustopologyIt is possible to coupleothers rings for increasingdepends on the protocolusedredundancyTable 2: Network topologiesThe different topologies can be mixed to define the plant network diagram. In an automationarchitecture, ring (and dual ring) topologies are commonly used to increase the availability of asystem.24© 2012 Schneider Electric All Rights Reserved
3 – Global ref. archi.3.3. PlantStruxure centralized architecture3.3.1. Centralized architecture descriptionThe aim of the centralized reference architecture is to propose a centralized monitoring andcontrol system for a small process application. A standalone SCADA system allows themonitoring of the complete automation system. A unique PAC controls all the field devices thatare needed to manage the process.Overall network architecture:Control roomA flat Ethernet network topology is used betweenthe control room and the functional unit.Capabilities:Around 1000 I/OsFunctional UnitOne controller is used to manage the entireplant.Figure 9: Centralized automation systemThis architecture targets small processes such as a water plant for 10000 inhabitants, a smallhydro power installation (less than 30MW) or a small food and beverage plant.The functional axes associated to this class of architecture include the following:Functional axisInteraction with userData managementEnergy managementProcess & equipment controlSystem configuration &administrationReliabilitySystem categoriesCentralized alarming systemCentralized monitoring and control system (local HMI orstandalone SCADA system)Basic reportingEnergy monitoringMotor control without iPMCCTraditional instrumentation control (4-20mA)Embedded diagnosticsDevice management embeddedLocal configuration managementLocal MaintainabilityTable 3: Functional axes for centralized architecture25© 2012 Schneider Electric All Rights Reserved
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3 – Global ref. archi.3.3. <strong>PlantStruxure</strong> centralized architecture3.3.1. Centralized architecture descriptionThe aim of the centralized <strong>reference</strong> architecture is to propose a centralized monitoring andcontrol system for a small process application. A standalone SCADA system allows themonitoring of the complete automation system. A unique PAC controls all the field devices thatare needed to manage the process.Overall network architecture:Control roomA flat Ethernet network topology is used betweenthe control room and the functional unit.Capabilities:Around 1000 I/OsFunctional UnitOne controller is used to manage the entireplant.Figure 9: Centralized automation systemThis architecture targets small processes such as a water plant for 10000 inhabitants, a smallhydro power installation (less than 30MW) or a small food and beverage plant.The functional axes associated to this class of architecture include the following:Functional axisInteraction with userData managementEnergy managementProcess & equipment controlSystem configuration &administrationReliabilitySystem categoriesCentralized alarming systemCentralized monitoring and control system (local HMI orstandalone SCADA system)Basic reportingEnergy monitoringMotor control without iPMCCTraditional instrumentation control (4-20mA)Embedded diagnosticsDevice management embeddedLocal configuration managementLocal MaintainabilityTable 3: Functional axes for centralized architecture25© 2012 <strong>Schneider</strong> <strong>Electric</strong> All Rights Reserved
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