Concepts Tasks Settings Creating Asset Health Calculation Variables Contents Creating an Asset Health Calculation Type Variable Creating an Asset Health Filter Type Variable Creating a Global Variable Type Variable Creating a Join Path Type Variable Defining a Factor Table for an Asset Health Variable Assigning Calculation Variable Limits and Weighting Assigning Null Value Behavior Testing an Asset Health Calculation Viewing Audit History Asset health calculations are reusable calculations with the purpose of selecting assets for asset health monitoring and determining their indexes. These calculations can be simple or complex, and they support the use of limits, weighting, and factor tables. Each asset health calculation can include multiple calculation variables. The result of an asset health calculation is an asset health index. Each asset health report definition can contain a maximum of five asset health calculations. Within each calculation there can be multiple calculation variables. Calculation variables are used in asset health report calculations and can be derived from four sources. These sources are: • Calculation • Filter • Global variable • Join path Factor tables allow you to use a single number to represent a range of derived values for a variable. The derived value for a numeric variable can be converted using a factor table that allows you to group results into numeric ranges. Limits and weighting can also be applied to numeric variables, assigning more importance to specific results. In addition, you can determine how to treat variables with null values. To ensure accuracy, calculations can be tested against an asset at any time. The following topics describe how to create the four different types of calculation variables.
