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Batch S88 Standard Overview
BATCH Standard

Standards exist to facilitate understanding and communication between the people involved. They help optimize revenue and you don't have to start from scratch for every new project. ANSI/ISA S88 is no exception. Although the benefits of S88 may be obvious to some, they are not necessarily as obvious to the decision makers.

S88 defines hierarchical recipe management and process segmentation frameworks, which separate products from the processes that make them. The standard enables re-use and flexibility of equipment and software and provides a structure for coordinating and integrating recipe-related information across the traditional ERP, MES and control domains.
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Batch S88.01 ANSI/ISA Standard Overview
In order to justify the use of S88, it is important to link its technical benefits to the business benefits of such an implementation.

S88 isolates recipes from equipment. When the software (S88-compliant or otherwise) that defines a product (recipe procedure) and the software to run equipment (phase logic) are in the same device (such as a PLC or DCS), the two different sets of code eventually become indistinguishable and, in some cases, inseparable. This makes recipe and equipment control difficult, if not impossible, to maintain. Every additional ingredient and process improvement can lead to lengthy and error-prone software changes. Documenting and validating such a system is also extremely difficult, and doubly so if not S88-compliant.

If recipes are kept separate from equipment control, however, the manufacturing process is more flexible and can provide significant advantages: Automation engineers can design control software based on the full capabilities and performance of the equipment rather than on the requirements of the product. Similarly, scientists, process engineers or lead operators who create the recipes can now easily create and edit them.

Separating products from the process that makes them raises the bar on plant flexibility. Equipment that may currently be constrained to one or a limited number of products may be able to accommodate more, improving overall equipment effectiveness (OEE) metric - a metric that has become the crucial link between the financial and operational performance of production assets.

Batch S88.01 ANSI/ISA Standard
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