Citect Historian Technical Overview.pdf

Data access via Web andExcel Clients cont.Applications> Information anywhereany time – visualizeand analyze plant floorinformation fromanywhere in the entireenterprise or over theInternet> Enterprise-widereporting – generateconsolidated reportsthat include bothplant floor andbusiness information> Batch reporting andrecipe downloads –upload recordsdetailing a batch forrecord keeping.Likewise, downloadrecipes to the plantcontrol systemSupportedBusinessDatabaseSystems:> Microsoft SQL(7.0, 2000, 2005,2008 R2)> Oracle (7, 8, 9, 10,10.2)CitectHistorian interfaces:> SQL Native Client> OLE-DB> ODBC> OPC HDA Server> OPC DA Client V2.05,V3.0> Web Client22SnapshotsCitectHistorian Web Client can takesnapshots of your plant to provide onlinecomparison of plant variable tags, such asproduction, energy usage, batch data anddowntime. Individual users can select theinformation relevant to them and the data canbe periodically updated in real time directlyfrom your control system. Snapshot data canbe viewed in several formats, including linecharts and data lists.Time-Series dataTrends allow you to view time-series,historical plant floor data and customizethe way it is displayed. This data can bedisplayed as charts, histograms, X-Y plots ordata lists. Charts can be changed from a linegraph to a pie chart in an instant.Database queriesMicrosoft SQL and Oracle tables or viewscan be published via query statements tothe CitectHistorian Web Client. Simply createan appropriate query on a table or view, andthat data is available to CitectHistorian WebClients, either as a data table or, if a Date/Time field is available, as a time-series datalist for graphical display.Web linksEvent data viewed through the CitectHistorian Web clientCitectHistorian can link directly to externalwebsites, providing an organized structurefor rapidly accessing relevant sites andinformation. For example, CitectHistorianinformation can be co-located with otherpertinent Intranet pages and accessedthrough the CitectHistorian web portal.Additionally, you can leverage the built-insecurity and user validation provided in theCitectHistorian Web Client by incorporatingcustom .ASP pages into the tree hierarchyand security model.Additionally, you can leverage the built-insecurity and user validation provided in theCitectHistorian Web Client by incorporatingcustom .ASP pages into the tree hierarchyand security model.HistorianPerformanceHistorian Poll> 1s (or greater)> Deadbands (per tag)Historian DataAccuracy> 1ns (for externaltimestamped data)> OPC Quality FlagsHistorian Security> Windows Integrated orSQL user-based> Secure each table,item, procedureHistorianInterfaces> SQL Native Client> OPC HDA Server> OPC DA Client> OLE-DB> ODBC> Web ServiceHistorian Tasks> Extract tag values andstore them in adatabase> Extract tag trendvalues and store themin a database> Extract alarm summaryinformation and store itin a database> Extract historian trendvalues and store themin a database> Extract tag valuesfrom a databaseapplication and transferthem to any SCADAsystem22 23