Batch Manager Resolves Process Tags into Unit Tags

Process tags and process classes are of an abstract nature. This means that they are not associated with a specific piece of process equipment. Rather, their association with actual equipment occurs when a batch is defined, scheduled, and then processed.

Batches are defined by specifying a campaign ID, lot ID, batch ID, recipe ID, and train. Recipes are equipment independent. Trains specify the process equipment (units) that are to be used. The AVEVA Batch Management System uses the recipe and train information to resolve which heat phase, and ultimately, the set of unit tags that are to be used.