Station Displays: Schematics and Tabulars

Station displays present SCADA data in two formats: graphical and tabular. The graphical format is the schematic. By means of single lines and graphic symbols for components, a “one-line” shows the operational state of the monitored system.

You can use schematic diagrams for two purposes:

To get a current view of the operating state of devices in the monitored station and to investigate the source of problem situations

To issue commands, either to control the state of devices or to control the way in which SCADA displays data

The kinds of symbols used to represent monitored devices and the colors in which various device symbols appear depend on how you have chosen to use SCADA display features.

Like schematics, “tabulars” show information about the state of monitored devices. You use tabulars for the same purposes as schematics: to see the current state of devices in the monitored system, to investigate the source of problems, and to perform control operations. However, tabulars display the information as rows and columns in a table instead of graphically. Also, tabulars usually contain more information per measurement point than schematics do.