Toshiba TOSDIC-CIE DS Manual

3. Database Management11Table 3.1 Specification of Historical DatabaseItem SpecificationCollectable Data PCS process tagsInternal OIS process tagsApplication set valuesCollecting Period Fixed PeriodCollectionTrend data :15 period types between 5s and 1 dayReport data :1 minuteCommon trend/report data: 20s to 1 minuteEvents Event conditionsNo collection Collected by application programNumber of Collection Points Maximum 5,000 tags/systemMaximum 200 tags/second-SVR-DSNumber of Saved Samples Maximum 10,000 samples/tagMaximum 20 million samples/SVR-DSSave Period Approx. 14h to 10,000 daysIn accordance with collection periodllllHistorical TagHistorical trend data, history messages and report data are managed for each historical tag. Amaximum of 5,000 historical tags can be set up in the SVR-DS. Historical tags are set up eachwith a historical tag name, tag number, atom name, collection period, save period and otherinformation. Archive groups can also be set up.Those historical tags used in the report function are set up with report data processing type andother information.llllRedundancy of Historical DatabaseThe SVR-DS redundant system makes historical tag data redundant. If one SVR-DS unit failsand some data in the historical database is missing, the historical tag data is equalized andmissing data will be recovered when this SVR-DS unit is started up again.See the section related to control of the redundant system for cautions about equalization.