A recipe defines a sequence of control functions that are started and stopped in a specific order, the variables, and the equipment used to produce a batch. Recipes enable a batch plant to use the same process equipment to produce many different products or product formulations.
Recipe Studio creates two types of recipes: master recipes and control recipes. A master recipe is best thought of as a template or as the generic version of a recipe. A control recipe can be thought of as a product-specific version of the recipe.
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Master Recipe |
Control Recipe |
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Acts as a template |
Acts as production version of a recipe |
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Created and modified by process engineers |
Modified and downloaded by operators |
Any recipe you create or modify with Recipe Studio can be saved as a master or control recipe. Saving recipe information as a master recipe enables you to modify it later without restriction.
All recipes have four main parts:
A recipe header identifies the recipe. It usually contains information about the exact version and the author of the recipe.
A recipe procedure contains the Procedural Function Chart (PFC) that defines the steps needed for the batch to run.
The formula parameters allow you to set values for different formulations of the product using the same recipe.
The equipment is defined in DeltaV Explorer and associated with the recipe. Each operation in Recipe Studio is associated with a specific equipment unit.