Units of measure (UOMs) and UOM Slates

About UOM and UOM Slates

A unit of measure (UOM) Slate is a collection of UOMs that are used for numerical display within the user interface. Each UOM Slate defines a default UOM for each Variable Type. You can create, modify, copy, and delete UOM Slates. Furthermore, you can select the preferred UOM Slate to use while you are working on a simulation, and the user interface reflects the change in the displayed numeric values.

Concepts

• Variable Types:

  • Every variable and Real parameter in AVEVA Process Simulation has an associated Variable Type, such as Pressure, Temperature, or Mass Flow.

  • Every Variable Type has a permanent internal UOM. See Internal units of measure for more information.

• Displays:

  • You can change a UOM in the Properties Inspector, Mini Inspector, or Simulation Manager.

  • When you change a UOM for a specific model's variable, that variable always appears in that UOM, except for Variable References and Trends.

  • Variable References and ports follow the variable's default UOM until you manually change the UOM. After a manual change, the Variables References and ports use the selected UOM instead of the default.

• Slates:

  • A UOM Slate is a collection of default UOMs for the Variable Types.

  • AVEVA Process Simulation provides you with two UOM Slates, SI and US Refining, but you can add more.

  • When you define UOM Slates, Variable Types are organized by category for easier navigation.

Actions

• Add, modify, copy, and delete UOM Slates in the UOM Manager.

• Switch to a specific UOM Slate that you want to use for numeric displays in your simulation by selecting it in the Units of Measure list on the Edit/View tab.

• Select a default UOM Slate that AVEVA Process Simulation uses for all newly created simulations.

• Save UOM Slates to the Repository to share them between simulations, or save them to a specific simulation.