Manage calculations with the Performance Equations tool

Use the Performance Equations tool to create and maintain PI Performance Equation (PE) calculations. These calculations allow you to use PI System data to program complex calculations such as the sum of two flows, the difference between two temperatures, and the simple mass balance on a process unit.

PE calculations can be used in other calculations, graphed in trend displays, and included in reports. These real-time calculations are generated by the Performance Equations Subsystem.

You can also use the Performance Equations tool to build and maintain the PI points you use to store data from the results of PE calculations. PI points that use PE calculations are known as PE points.

Note: Future PI points cannot be used as output, input, or trigger tags in Performance Equations.