Abstract: A process control and manufacturing information database client application is disclosed for rendering and displaying a filtered set of received time-series data. A client application, such as a trending client that graphically displays a series of data point values for a particular observed parameter of a manufacturing process receives, via a data acquisition interface, a set of timestamped time-series data values for an observed parameter from a process control and manufacturing information database. Thereafter, the client application invokes a time-series data filter that includes/supports at least one filtering operation that is applied to the set of timestamped time-series data values to render a filtered data set for plotting/drawing on the graphical display interface. The filtered data set is thereafter rendered by a display function as a series of plotted points on a time-line graph.

Abstract: A process control and manufacturing information database client application is disclosed for rendering and displaying a filtered set of received time-series data. A client application, such as a trending client that graphically displays a series of data point values for a particular observed parameter of a manufacturing process receives, via a data acquisition interface, a set of timestamped time-series data values for an observed parameter from a process control and manufacturing information database. Thereafter, the client application invokes a time-series data filter that includes/supports at least one filtering operation that is applied to the set of timestamped time-series data values to render a filtered data set for plotting/drawing on the graphical display interface. The filtered data set is thereafter rendered by a display function as a series of plotted points on a time-line graph.

Abstract: A process control and manufacturing information database client application is disclosed displaying received time-series data in an unambiguous manner when a displayed range of time-series data includes a DST transition for a designated time zone for displaying the data. A data acquisition interface obtains timestamped time-series data values for an observed parameter from the process control and manufacturing information database. The data values are requested/received/stored by the client application, for example, according to the UTC time standard. The client application renders the timestamped time-series data values as a series of points on a time-line graph. The time-line graph includes alphanumeric time labels specified in accordance with a designated time zone. The display function renders the time-line graph without disruptions over a time span containing a Daylight Savings Time (DST) transition for the designated time zone.

Abstract: A control system database server is disclosed that includes a data compression facility that implements a compression test sequence on streams of time stamped data points rendered by components of a control system. A deadband/time override is incorporated into the compression test sequence to ensure that a previously received data point, within the stream of received data points, is saved within a designated time period even if the compression test sequence would have determined that the data point be discarded. The series of compressed/tabled data points, corresponding to the received steams of data points, are thereafter provided by the historian to requesting client applications that, by way of example, retrieve the compressed, time stamped data point streams for the purpose of constructing and displaying trend graphs.

Abstract: A process control and manufacturing information database client application is disclosed displaying received time-series data in an unambiguous manner when a displayed range of time-series data includes a DST transition for a designated time zone for displaying the data. A data acquisition interface obtains timestamped time-series data values for an observed parameter from the process control and manufacturing information database. The data values are requested/received/stored by the client application, for example, according to the UTC time standard. The client application renders the timestamped time-series data values as a series of points on a time-line graph. The time-line graph includes alphanumeric time labels specified in accordance with a designated time zone. The display function renders the time-line graph without disruptions over a time span containing a Daylight Savings Time (DST) transition for the designated time zone.

Abstract: A process control and manufacturing information database client application is disclosed for rendering and displaying a filtered set of received time-series data. A client application, such as a trending client that graphically displays a series of data point values for a particular observed parameter of a manufacturing process receives, via a data acquisition interface, a set of timestamped time-series data values for an observed parameter from a process control and manufacturing information database. Thereafter, the client application invokes a time-series data filter that includes/supports at least one filtering operation that is applied to the set of timestamped time-series data values to render a filtered data set for plotting/drawing on the graphical display interface. The filtered data set is thereafter rendered by a display function as a series of plotted points on a time-line graph.