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Contracts for I&C systems typically specify that systems must be fully tested at the manufacturer’s facility before shipment. Depending on the size and type of control system, factory tests may involve simulation software (Blevins et al., 2000; Dougall, 1997).

The design engineer, end user personnel, or other designated parties typically witness this control system testing to ensure that the system is fully debugged, complies with design requirements, and is free of internal-wiring errors when the equipment leaves the factory. This reduces control system startup time and confines most of the remaining errors to field wiring or other field-related issues.

At least 2 months before testing begins, the contractor must submit a schedule of test dates and a factory test procedure to the engineer and owner. The factory test procedure must include all testing steps, checklists, and settings and a list of all test equipment to be used to verify that the scheduled testing will fulfill contract requirements.

When factory tests have been completed successfully, the contractor’s control system supplier should submit a report to the design engineer with the test results that clearly indicates that all deficiencies found during the factory test were corrected. Equipment should not be shipped until the contractor’s control system supplier receives a notice from the engineer that the test results were acceptable.