Integrated tests uncover incorrect addressing, loose control wiring, incomplete logic, and other basic defects.
Expensive system-level windows are consumed diagnosing problems that should have been removed earlier.
Component and functional testing close basic defects before integrated scenarios begin.
Introduce a pre-IST gate covering scripts, interfaces, alarms, trends, failure modes, and open defects.
05 · FIELD TAKEAWAYIST should test integration—not compensate for incomplete commissioning.
This note describes a recurring industry pattern using combined and simplified examples. It does not represent a particular client or project.