Hands-On Industrial Internet of Things

ISA-95 equipment entities

The equipment model hierarchy shown in the previous section describes the various equipment entities and their relationships in the ISA-95 model. These entities are described in detail as follows:

• Enterprise: An enterprise is an organization that has a definite mission, goals, and objectives. It could represent an entire company, a division within a company, or a functional component of a company dedicated to a product or service. Corporate, divisional, and business unit activities are decided at the enterprise level.
• Site: A site is generally a physical or geographic grouping of a portion of an enterprise. A factory could be a site, an entire complex containing multiple factories, or a single building. The exact ...