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Protective Instrument Loop Data Model

The following diagram shows how the families used in a Protective Instrument Loop are related to one another.

Note: In the diagram, boxes represent entity families and arrows represent relationship families that are configured in the baseline database. You can determine the direction of the each relationship definition from the direction of the arrow head: the box from which the arrow originates is the predecessor, and the box to which the arrow head points is the successor.

The following protective instrument loop elements are defined in the GE Digital APM system:

• Logic Solver
• Sensor System
• Sensor Group
• Sensor
• Final Element System
• Final Element Group
• Final Element

By default, every protective instrument loop consists of at least one of each element. When you create a Protective Instrument Loop, the GE Digital APM system creates one record for each of these elements, and links to the Protective Instrument Loop as shown in the data model.

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