Best Industrial Automation Projects: A Complete Guide to FAT, SAT, and System Commissioning
A successful industrial automation project is not defined by how clean the control panel looks in the workshop; it is defined by how reliably the plant operates under maximum load. The bridge between control panel assembly and continuous production is a disciplined Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) protocol.
De-Risking Automation Projects: FAT vs. SAT Protocol
Skipping or rushing FAT testing at the panel builder's workshop is the single leading cause of delayed plant startup dates. Thorough validation must occur in two controlled stages:
- Factory Acceptance Testing (FAT): Conducted at the panel manufacturer facility. Inputs/outputs (I/O) are simulated, PLC logic loops are verified, and safety interlocks are triggered to ensure compliance before shipment.
- Site Acceptance Testing (SAT): Executed after field installation. Validates real sensor signals, VFD rotations, valve actuators, and SCADA telemetry under actual field operating conditions.
Turnkey Commissioning Execution with BizSoKae
At BizSoKae, our industrial automation engineers manage complete FAT and SAT execution for continuous process and discrete manufacturing setups. Learn more about our engineering capabilities on the BizSoKae Platform.
Article FAQs & Key Takeaways
QWhat is the difference between FAT and SAT in industrial commissioning?
FAT (Factory Acceptance Testing) is performed at the panel manufacturer shop using simulated signals to test PLC code and panel wiring. SAT (Site Acceptance Testing) is performed at the actual plant location with live sensors, motors, and field devices connected.
QWhy is I/O loop checking critical during automation commissioning?
I/O loop checking verifies that every field sensor and actuator is wired to the correct PLC channel and scale, preventing motor burnouts or false alarms during plant startup.