Select Process Class Instance Attributes

On the Process Class Instance Editor dialog box, use the Attributes list and Min and Max text boxes to provide additional equipment requirements for a recipe.

Note: Using Attributes is optional.

The AVEVA Batch Management System uses attributes to allocate units in the train assigned to a batch only if the unit attribute values satisfy the corresponding recipe attribute requirements. You define attributes for the process class in the Process Model Editor.

For more information on Process Class Attributes, see Chapter 4, "Process Modeling.".

The assigned attributes are valid only for the selected process instance and the recipe that you are creating. The attribute range consists of a minimum value (Min) and a maximum value (Max). If you do not define a range, the attribute is ignored by the AVEVA Batch Management System. If a recipe requires a unit with an attribute range, you must enter the minimum and maximum attribute values needed for the recipe. If the attribute must be a specific value, the minimum and maximum values must be the same. Several examples of attribute range definitions are shown in the following table. Included with each definition is the action that the AVEVA Batch Management System takes.

Note: If you have assigned a specific unit to a process instance, you cannot define an attribute range. The AVEVA Batch Management System is required to allocate the assigned unit when the recipe is processed as part of a batch.