Tune every control loop.
Learn why it works.

Savi LoopIQ pairs a browser-based PID tuner — SIMC, IMC, Lambda, Ziegler-Nichols, Cohen-Coon — with an AI Instructor that explains every knob against your live loop, grounded in Skogestad, Aström & Hägglund, and Seborg.

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Built by control engineers, for control engineers

Five industry-standard tuning rules

SIMC (Skogestad), IMC (Rivera-Morari), Lambda, Ziegler-Nichols open-loop, and Cohen-Coon. Same math as Aspen Simcet, without the price tag.

Time, Bode, Nyquist — one screen

Robustness metrics update live: Ms, Mt, gain margin, phase margin. No re-simulating, no exporting to MATLAB.

AI Instructor grounded in your loop

Click "Why?" on any metric. The Instructor cites Skogestad SIMC or Aström & Hägglund and explains against your actual plant and gains — not generic textbook fluff.

50-case regression corpus

Every rule is verified against a 50-loop corpus spanning refining, chemicals, water/wastewater, pulp & paper, and power. Ports match to 4 decimal places.

CSV in, gains out — read-only by design

Savi LoopIQ is an analysis and simulation tool. You import a bump-test CSV or type FOPDT parameters; you copy the recommended gains into your control system by hand. Read-only HART USB / OPC UA / PI connector foundations are in beta and customer-environment dependent — no writeback, no hardware or vendor certification.

iOS and mobile web

The same TypeScript control library powers the Savi LoopIQ iOS app. Tune loops from the field.

How data gets in and out

Savi LoopIQ is primarily a browser-based analysis and simulation tool. Read-only connector foundations for HART USB, OPC UA, and OSIsoft PI are in beta and depend on your specific customer environment — there is no writeback to a live loop and no hardware or vendor certification. Here is exactly how data flows:

Input · path 1

Type the model directly

Enter FOPDT or SOPDT parameters — process gain (kp), time constant (τ), and dead time (θ) — from your prior bump test, vendor datasheet, or field notebook. Zero setup, zero latency.

Input · path 2

Upload a bump-test CSV

Export PV/OP time-series from OSIsoft PI, Aspen IP.21, Honeywell PHD, Canary, or any historian that produces CSV. Savi LoopIQ fits the model in your browser — your data never leaves your machine.

Output

Copy for DCS / PLC

One-click formatted output for DeltaV, Foxboro I/A, Honeywell C300, Yokogawa CENTUM, ABB 800xA, Rockwell PIDE, and Siemens PCS 7 — with the correct time units and algorithm form for each. Operator types them in, or writes them from a hand-held communicator.

What Savi LoopIQ does not do

No writeback to any live loop. The read-only HART USB / OPC UA / PI connector foundations are in beta and depend on your customer environment — there is no hardware or vendor certification, and Savi LoopIQ never writes to DeltaV / Experion / CENTUM / 800xA. Loops that need certified live-plant integration should look at Control Station PlantESP or Valmet PlantTriage instead — different product, different install footprint.

Working with a site that has a historian and wants scheduled tuning audits? The read-only OPC UA / PI connector foundations are in beta — get in touch.

Simple pricing

Compared to $600/yr for a MATLAB Control Toolbox seat or $11k for Control Station Loop-Pro.

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Personal

For students and single-loop tuning.

$39/mo

or $390/yr

Choose Personal

✓5 tuning rules (SIMC, IMC, Lambda, ZN, CC)
✓Time / Bode / Nyquist plots
✓AI Instructor — Why + guided Lessons
✓Save up to 10 loops
✓Site / unit hierarchy (private)
✓20 Instructor questions / day

Tune every control loop. Learn why it works.

Built by control engineers, for control engineers

How data gets in and out

Simple pricing

Tune every control loop.
Learn why it works.