Mobile Access to Information

South Texas refinery production manager Tim Olsen said he had been exploring the EIDI's PI Vision displays using his iPhone when away from the refinery. Using secure access mechanisms, this mobile capability enables people to access displays using their phones, tablets, home PCs, and laptops

FIGURE 5.6

Accessing EIDI data from mobile devices.

(Figure 5.6). He said he was able to view a trend display showing conditions of the boiler house. "I was never able do that before," declared Tim.

Asset-Relative Displays

When a company such as Proclndustries embarks on an EIDI project, there seems to be an infinite number of ways to display the process, equipment, and production metrics. One advantage of the method chosen by the Proclndustries team is to build an asset data model, used to establish a hier- archal structure and to simplify system configuration. This is accomplished by using the EIDI system's asset framework (AF) modular templates that enable configuration of similar assets (pumps, compressors, distillation columns, etc.) using a single, reusable template. When building the asset template, the following items are included:

  • • The individual variables (data streams) that comprise a specific asset;
  • • Online, run-time calculations and alerts specific for this specific type of asset (perhaps an inferred efficiency measurement is calculated using measured sensor values. A real-time alert or notification is then generated when the efficiency measurement result falls outside acceptable limits.); and
  • • Other reference data that may provide helpful information but not used in real-time processing, such as when the equipment was placed into service or when it was last serviced, its typical maintenance cycle, or the vendor-recommended operating range.

Using the AF modular template approach, the team discovered they could build a single visual display for similar units and simply navigate to select the desired unit to view its status and supporting data.

FIGURE 5.7

Navigating through refinery units using asset-relative displays.

Figure 5.7 shows this capability when displaying a refinery unit, with an AF tree view on the left side of the display for navigating through the refinery's units. These displays can show process and quality variables. They can use statistical process control (SPC) charts to plot quality data with the SPC analysis tools. This display also shows a у versus ,v linear plot of two process variables such as the effect of the gas flow rate on the reactor discharge temperature. The user decides what to include for each unit, based on their needs. They can modify the base display to add or modify variables through configuration tools. This is an invaluable aspect of the EIDI. This strategy reduces the cost of curiosity by empowering people to resolve problems.

 
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