Documentation

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Documentation, case studies and whitepapers

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Technical documentation

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Whitepapers

4 papers

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Frequently asked questions

Integration · deployment · safety · return

Frequently asked questions

What does Acaysia do?

Acaysia is a control system that optimizes physical processes for yield, energy, and throughput. It models each unit operation as a typed object and computes control moves in real time. It is validated on our reactor platform and a six-PLC test bench, and built for any process, in any plant.

Why does Acaysia work across different processes?

Acaysia runs on a typed compositional ontology of unit operations. Each process is described by conserved quantities, ports, state variables, and manipulated variables. The controller reads the ontology rather than hard-coding one process, so the same architecture extends from reactors to columns to crystallizers.

What types of unit operations does Acaysia support?

Acaysia runs on continuous stirred-tank reactors today. The same architecture extends to batch reactors, plug flow reactors, distillation columns, crystallizers, and evaporators. Chemical manufacturing is the first vertical.

How does MPPI control differ from traditional PID control?

PID reacts to the error it sees right now. MPPI (Model Predictive Path Integral) control couples machine learning with predictive optimization to anticipate where the reactor is heading and pick the best move before a disturbance lands. The payoff is higher yield, lower energy use, and faster recovery from upsets, with PID still underneath as the safety net.

Is Acaysia compatible with existing PLC systems like Rockwell and Siemens?

Yes. Acaysia connects to existing PLCs from Rockwell, Siemens, and other major vendors over the standard protocols, OPC UA and EtherNet/IP. No rip-and-replace; it drops in alongside what you already run.

What is Shadow Mode and how does deployment work?

Shadow Mode is the first phase of deployment where Acaysia observes your reactor operations without making control decisions. A learned residual tracks fouling and drift. The system then progresses through Advisory Mode (recommendations only) before optional Closed-Loop Control with full automation.

How quickly can the failsafe system respond to issues?

Acaysia’s failsafe responds in under 100 milliseconds, automatically reverting to proven PID control or a safe shutdown when it detects an anomaly.

Is it safe to run in a real plant?

Yes. A Trust Arbiter checks every control move against plant limits, and the system falls back to existing PID control in under 100 milliseconds on any fault. The safety architecture is ASIL-D inspired and SIL compatible and never interferes with Safety Instrumented Systems. Shadow Mode is read-only.

What kind of ROI can we expect from implementing Acaysia?

An estimated 2% yield improvement and around 10% energy reduction; results vary by customer and process. Every deployment starts in Shadow Mode for 30 days, where you compare Acaysia’s predictions against your PID’s actual performance before it touches control. Detailed economics are available under NDA.