高可用应用程序的OPC UA冗余性.pdf

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1、OPC Day International 2024June 17th 21st,2024Andreas MacherProduct Manager Siemens AGOPC Day International 2024June 17th 21st,2024Prevention of damagesInterruption of critical processes can harm product or factory equipmentPreventing plant downtimeLoss of production costs money!Maintain critical inf

2、rastructureEnsure traffic flowKeep logistic supply chain aliveGuarantee water supplyElectronic ManufacturingGlass MeltingTunnel AutomationSewage PlantsData CenterAirport LogisticsOPC Day International 2024June 17th 21st,2024Redundancy is a very commonly used method to increase the availability of a

3、systemOPC UA Definition:Presence of duplicate components enabling the continued operation after a failure of an OPC UA componentExample for redundancy:Two parachutes on Apollo15 were sufficient for the failure of the thirdOPC Day International 2024June 17th 21st,20244No RedundancyClient RedundancySe

4、rver RedundancyClient+Server RedundancyFullRedundancyClientNetworkServerConceptDescriptionServer RedundancyAllows clients to have multiple sources from which to obtain the same dataClient RedundancyClient Redundancy allows identically configured clients to behave as if they were single clients,but n

5、ot all clients are obtaining data at a given time.Network RedundancyAllows a client and server to have multiple communication paths to obtain the same dataSNCSCCCSNCSNC CSNCSNNSSOPC Day International 2024June 17th 21st,20245No RedundancyClient RedundancyServer RedundancyClient+Server RedundancyFullR

6、edundancyClientNetworkServerConceptDescriptionServer RedundancyAllows clients to have multiple sources from which to obtain the same dataClient RedundancyClient Redundancy allows identically configured clients to behave as if they were single clients,but not all clients are obtaining data at a given