FAT and SAT for SCADA and PLC Projects
Planning factory acceptance tests (FAT) and site acceptance tests (SAT) for SCADA and PLC upgrades, changeovers, and installations across multiple sites.
Factory and site acceptance testing should be planned as part of the engineering scope. The test plan checks control narratives, alarms, communications, and operator screens before the system changeover.
We structure acceptance testing around real operating scenarios: power-fail recovery, comms loss, permissives and interlocks, manual override workflows, and alarm escalation so operators and maintenance teams can trust the system on day one.
For multi-site systems, we also standardize test cases and results templates so every pump station, well site, or remote panel is commissioned consistently and defects are tracked to closure.
Key Focus Areas
- Scenario-based test cases mapped to control narratives
- Alarm and HMI verification aligned with operator workflows
- Repeatable commissioning process for multi-site rollouts
Implementation Checklist
- Define FAT/SAT scope and pass-fail criteria before development is complete
- Include comms-loss and power-fail recovery scenarios in every site test
- Capture redlines and as-built updates as part of SAT closeout
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