Autodesk 235B1-05A761-1301 User Guide - Page 606

■ Specify property set values as desired for fields that can be edited manually. You can do this when you tag an object or add property sets, or you can do it at any time using the Extended Data tab of the Properties palette. ■ Use a schedule tool to add a schedule. The schedule format is based on the schedule table style. The schedule table is populated with the property set values from the selected objects. ■ Modify the schedule table style, if necessary, using Style Manager. You can modify the appearance of the headers and columns in the table, and you can specify what property set data to display. AutoCAD MEP provides a collection of mechanical, electrical, and plumbing-specific schedule tags, such as those for HVAC, piping, equipment, plumbing fixtures, light fixtures, and circuit schedules. AutoCAD MEP also provides a collection of schedule table styles you can use or customize to meet your needs. Available schedule table styles include styles for creating equipment, fixture, and lighting schedules. You can access default schedule tags, property set definitions, and schedule table styles in drawings located in \ProgramData\Autodesk\MEP 2010\enu\Styles. Schedule tables and the associated object properties are customizable. Customizing can be as simple as rearranging, adding, or deleting columns from a schedule table style, or as complex as creating a custom-defined report specific to a unique design or project. Defining Property Set Definitions Property set data that is used to generate schedule tables is created from property set definitions attached to the object. Property set definitions establish object properties that can be dynamically linked to schedule tables. You can also use classifications to define the type of objects to which to apply the property sets. That means that you can create a certain property set for objects classified as air terminals, and another for objects classified as VAV units. Property set definitions can be either style-based or object-based. Style-based definitions apply to all objects of a specific style, while object-based definitions apply to individual objects. For example, a Manufacturer property will probably be the same for every instance of a particular damper or MvPart style, so it should be in a style-based property set definition. However, a RegisterNumber property is different for each instance of a damper, so it should be in an object-based property set definition. Your strategy for creating style-based versus object-based property set definitions should be based on how often information might change. AutoCAD MEP provides a group of property set definitions based on industry-standard schedules. When you use schedule tags and schedule tables, the supplied property set definitions are loaded into your drawing. You can merge, edit, and delete property set definitions. You can share property set definitions between drawings. You can also customize the part catalogs to include part properties that can be added to property set definitions. For more information, see Property Set Definitionsin the AutoCAD Architecture online help. To create your own object properties within a property set definition, you can write your own property definition formula. For example, to estimate the cost of a particular length of pipe, you can create a definition property set formula such as length x $2.00 per foot = cost. Defining Property Set Data You define property set data for an object by establishing a link to one or more property set definitions. The property set data assigns a value for each object property in the property set definition(s). Automatic property values are defined based on the attached object or style and are dynamically updated when the object or style is modified. Manual property values are numbers or text strings that you enter, and they can be modified at any time. 588 | Chapter 12 Creating Construction Documents