JUL-AUG 2018

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INTECH JULY/AUGUST 2018 27 SYSTEM INTEGRATION Three models are defined for pro- cedural automation of continuous process operations. 1. Procedure requirements model The procedure requirements model depicts how procedure require- ments map to the hierarchy of equipment shown in the physical model. 2. Procedure implementation model The procedure implementation model serves as the connection be- tween the procedure requirements model and the physical model, as illustrated below. 3. Physical model The physical model depicts how the ISA-95 role-based equipment model is applied to continuous process op- erations within this technical report. Work processes The work of ISA106 is intended to pro- vide a framework for building process operating knowledge into automated procedures. This is especially im por- tant for such plant procedures as startup, shutdown, and product grade change—as studies have shown that plants are particularly vulnerable to safety incidents caused by inexperi- enced operators performing unfamil- iar manual functions during such key procedures. Building on the models and termi- nology of its first technical report, the ISA106 committee has completed a second technical report that describes work processes involved with auto- mating procedures for monitoring and controlling continuous processes. Procedure requirements model Enterprise procedure requirements Plant procedure requirements Unit procedure requirements Equipment procedure requirements Device procedure requirements Procedure implementation model Physical model Enterprise Site Plant Plant area Unit Equipment Device Site procedure requirements Plant area procedure requirements Site implementation modules Plant implementation modules Plant area implementation modules Unit implementation modules Equipment implementation modules Control implementation modules The work of ISA106 is intended to provide a framework for building process operating knowledge into automated procedures.

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