Patent ID: 9599982
Date: 2017-03-21
CPC Classifications: G05B

Claim:
1. A system for managing human machine interface (HMI) applications for industrial control and automation, said system comprising: a processor; software instructions stored on a tangible, non-transitory media and executable by the processor, said software instructions comprising: instructions for receiving data indicative of a manufacturing/process control system being monitored; instructions for displaying a user interface indicative of a status of the manufacturing/process control system being monitored, said status is based on the received data; instructions for displaying graphic elements as part of the user interface wherein each element is associated with and indicative of an alarm status of one or more aspects of the manufacturing/process control system being monitored; instructions responsive to user input for rendering a visualization window in a single trend line of blended data including (1) received real time data of a process variable of the manufacturing/process control system being monitored and (2) historical data of the process variable of the manufacturing/process control system being monitored, and instructions for determining a refresh cycle for the visualization window based on a width of the visualization window and a time period of the visualization window, wherein the instructions for rendering first use real time trend data to define the single trend line and backfill any additional data needed with historical data from a historian server wherein the real time trend data corresponds to a configured process variable and is plotted on the same axis together with the historical data for a configured time period, and wherein the instructions for rendering presents a visualization window which has no trend line for a period in which historical data is not present, and presents a visualization window which has no trend line for a period in which a quality of the data is below a minimum resolution.