Metasys® for Validated Environments (MVE ... - Johnson Controls

Figure 13 is an example of the optional StarfieldDisplay. The Starfield Display relates several piecesof dynamic Heating, Ventilating, and Air Conditioning(HVAC) data into a single visual pattern. The patternprovides an overview of the operation of manypieces of HVAC equipment. Operators can quicklyand easily see which equipment needs the mosturgent attention. A Starfield Display is like a scatterplot, which distinguishes normal or abnormalpatterns. The following star attributes can beabstracted to real data: size, brightness or color,position relative to other stars, and movement overtime. Linking star attributes to system attributes likealarm condition, run status, temperature, humidity, orpressure, equipment characteristics can berepresented by star clusters. Figure 13 representssix systems, which could be air handling units orproduction rooms.The Starfield in the lower left indicates:• the equipment is on, noted by the size of the centerstar• the command status and the equipment statusmatch because the center start is green• this Starfield monitors seven variables depicted bythe seven smaller dots surrounding the axis. Thevariables may be room temperatures or air handlercontrol variables. Four of those variables are in anormal or non-alarm state, because they are shownin green and near the center or target while threevariables are in an alarm condition, shown in blue.At a glance, the operator can identify the variable inalarm. By hovering the cursor over this point, theoperator can view the variable specifics and determinethe appropriate response.Figure 13: Starfield Display12 Metasys for Validated Environments (MVE) Product Bulletin