PiControl Solutions
Services

Process Control Consulting for
PID Tuning
& plant-wide optimization

Process control consulting optimizes PID controller performance, reduces control loop oscillations, and increases plant throughput by systematically identifying and correcting suboptimal tuning parameters — delivered on-site and remotely for industrial plants in 40+ countries.

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PID loops tuned
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MPCs re-stabilized
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Industrial facilities
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Countries served
Software · Consulting

Our 7 process control consulting services

Four optimization disciplines (PID, APC, MPC, process improvement), the COLUMBO software behind MPC model identification, and two adjacent engineering services — every engagement scoped against measurable KPIs and documented with before-and-after results.

Every PiControl engagement applies our process control software directly at your facility — PITOPS for closed-loop system identification, SUPERTUNE for automatic online PID auto-tuning, COLUMBO for closed-loop MPC model identification, and APROMON for live loop performance monitoring. Our engineers arrive with the same software that runs in customers' production plants — not spreadsheets and generic methods.

Consulting servicesSwipe
SetpointΣ+ErrorPKp e(t)IKi ∫ e(τ)dτDKd de(t)dtΣProcessOutput

PID Tuning Consulting

PID tuning consulting uses closed-loop system identification to extract accurate process transfer functions from normal operating data, then calculates optimal PID parameters — gain, integral time, derivative time — that minimize variability without disrupting production.

Result30–70% less variability
Production Rate Maximizing APCFC110.OPPVPIDTC910(PV-SP)PVPIDFC757.OPPVPIDTI931.PVPVPIDFC971.OPPVPIDLC927.OPPVPIDOlefinsFlow TargetPVPIDLowSelectorTotal FeedSetpoint

APC Implementation

APC implementation designs and commissions DCS-resident advanced process control that runs inside your existing DCS or PLC — no external host computer, no proprietary middleware. Traditional APC projects degrade after turnarounds because the optimization layer lives outside the control system; DCS-resident architecture avoids that failure mode entirely.

DifferentiatorSurvives DCS upgrades
Oscillating controlled variable around its targetA poorly tuned loop: the controlled variable swings in large sustained oscillations across the CV target line before settling.CV TargetCV (controlled variable)

MPC Maintenance

MPC maintenance audits, tunes, and re-optimizes existing MPC applications from any vendor — AspenTech DMCplus, Honeywell Profit Controller, Yokogawa Exasmoc, Shell SMOC. Most MPC applications lose 30–50% of original benefit within two years; closed-loop re-identification restores it without rebuilding the controller.

OutcomeRestored in 1–2 weeks
MPC MODEL IDNOW

COLUMBO

COLUMBO is closed-loop MPC model identification software that extracts accurate multivariable transfer functions from existing MPC data — without removing the controller from automatic mode — to refresh degraded models, and it also runs as a modular, PLC-based multivariable predictive controller in its own right.

ResultNo step tests required
ENERGY & EMISSIONS

Process Improvement

Process improvement consulting reduces steam consumption, minimizes flaring, controls emissions, and prevents product losses through control-loop-level optimization — not plant redesign. The work targets loops that drive utility cost and environmental footprint: combustion air ratio, fuel-gas pressure, distillation reflux, compressor anti-surge, boiler drum level.

FocusEnergy · emissions · flaring
PLC / SCADA

PLC / HMI / SCADA Design

Builds and modernizes plant-floor control systems with rigorous loop-by-loop documentation, tested control narratives, and operator interfaces designed for fast situational awareness. Covers greenfield, brownfield, and legacy replacement projects.

ScopeLayer 2 — DCS/PLC
PROCESS DESIGNFEED

Chemical Engineering Design

Applies first-principles process modeling and dynamic simulation to debottleneck, redesign, and optimize unit operations — distillation revamps, heat exchanger network redesign, reactor studies, pump and compressor selection.

SoftwarePiDistill · PiHEx · PiReact-T
The protocol

How a PiControl consulting engagement works

A four-stage protocol identical for on-site and remote delivery — only the engineer's location changes.

Define the work

Scoping

Site assessment, control-loop inventory, KPI baseline, and engagement boundary. Output: a scope document listing which loops, which KPIs, which DCS/PLC platforms. Duration: 3–5 working days.

Duration 1–12 weeksDelivery on-site or remote via OPCCoverage 40+ countriesPayback 3–6 months
Why PiControl

Why plants choose PiControl consulting

Poorly tuned loops, drifted APC controllers, and degraded MPC applications quietly bleed throughput, raise utility costs, and force constant operator intervention. Most consulting follows one of two patterns: a generalist with a spreadsheet and Ziegler-Nichols, or a DCS-vendor team selling licenses for tools you already own. Neither produces durable improvement. PiControl is structured to avoid both.

Most consulting
The PiControl way
01

Generic tools

A generalist with a spreadsheet and Ziegler-Nichols, or a DCS-vendor team selling licenses for tools you already own.

Our own software

Every engagement runs on PITOPS, SUPERTUNE, COLUMBO and APROMON — the same process control software we license to customers. The only variable is who runs it.

02

Disruptive or abstract

Open-loop step tests that upset production, or frequency-domain math that misses how real plants actually behave.

Closed-loop, time-domain

Closed-loop system identification in the time domain — controllers stay in automatic, no bump tests. It captures dead time, nonlinearity and interactions frequency-domain methods miss.

03

Vendor lock-in

Vendor teams that lock the tuning, APC and MPC layers to their own DCS and their own licenses.

Independent of any DCS / PLC

The optimization layer runs inside any control system — Honeywell, Emerson DeltaV, Yokogawa, ABB, Siemens PCS 7, Rockwell, Schneider. No vendor lock-in for the tuning, APC or MPC layers.

Industry applications

Industry Applications: Where Our Engineers Work

PiControl consulting deploys in every continuous and batch manufacturing sector. Each engagement is tailored to the process dynamics, safety constraints, and regulatory environment of the specific industry. Refining loops tune differently from pharmaceutical batch reactors, and boiler combustion control is not the same problem as centrifugal compressor anti-surge. The results below are drawn from delivered engagements.

FAQ

Frequently asked questions about PiControl consulting

Engagement length, on-site vs remote, plant size, platforms, ROI, and cost.

Process control consulting is an engineering service that diagnoses and corrects suboptimal PID tuning, advanced process control performance, and MPC model accuracy in industrial plants. The work uses process control software — closed-loop identification tools, automatic tuning calculators, and live performance monitors — applied by engineers on-site or remotely via OPC.
Engagements run 1–12 weeks depending on scope. A focused PID tuning engagement on 50–100 loops completes in 2–3 weeks. A full APC implementation on a multi-unit plant runs 8–12 weeks. MPC re-optimization on a single controller is usually 1–2 weeks.
Both. Engineers deliver consulting on-site at the plant or remotely via OPC-DA / OPC-UA connection to the historian. The methodology is identical — the software does the same identification and tuning math whether the engineer is in the control room or in another country. Most engagements combine an initial on-site scoping visit with remote execution.
Engagements cover a typical range of 50–500 control loops. Small skid units and pilot plants with fewer than 20 loops are also in scope, as are very large refineries and ethylene crackers with thousands of loops phased across multiple engagements.
PiControl process control software connects to every major DCS and PLC platform via OPC-DA and OPC-UA — Honeywell Experion, Honeywell TDC3000, Emerson DeltaV, Yokogawa CENTUM VP, ABB Ability Symphony Plus, Foxboro IA, Siemens PCS 7, Rockwell PlantPAx, Schneider EcoStruxure, Allen Bradley PLC. No proprietary hardware or middleware required.
Every engagement is scoped against measurable KPIs — variability standard deviation, energy intensity, throughput, emissions, flaring volume — captured before parameters change and again after deployment. In a recent power plant engagement covering 80 boiler loops, SUPERTUNE auto-adaptive tuning reduced combustion oscillation by 55%. Typical payback: 3–6 months.
Yes. Consulting can be paired with process control training courses — PID tuning fundamentals (PID100), advanced PID (PID475), APC fundamentals (APC200), DCS/PLC operator courses. Pairing consulting with training makes engagement benefits durable: trained engineers maintain the optimization after the consultant leaves.
Cost depends on loop count, on-site vs. remote delivery, plant complexity, and travel scope. Schedule a consultation for a scoped proposal — the first call is free and includes a high-level estimate.
INA, the Croatian national oil company, signed a contract with PiControl Solutions for implementation of APROMON and PITOPS in Rijeka refinery (circa 1,000 control loops). Additionally, as part of the scope, tuning of 350 loops was done by PiControl engineers. The project was executed smoothly, within budget and time (8 months). Since I was working directly with PiControl engineers I can witness their professionalism and devotion to finalize the project successfully. The best recommendation for the project came from panel operators from units that were not within the scope, when they asked when this kind of job would be done on 'their' plants. I highly recommend the company and tools for loop tuning type projects.
Process Engineer
Croatian national oil company
We are amazed at how simple, modern and practical your software is and the training is very hands on. And thanks to PITOPS PID optimizer and your onsite consulting services, we were able to pass government tests on frequency control.
Process Control Engineer
Electric Power Plant, Dominican Republic
PITOPS use for PID tuning and APC design was amazingly fast, accurate and modern. Numerous PIDs were tuned and the APC has run robustly for many years without need for any maintenance.
Process Control Team
The world's largest international oil and gas company
No one else besides PiControl was able to successfully conduct closed-loop system identification with noisy data with disturbances. PITOPS software produced accurate transfer functions and optimal PID parameters.
Process Control Engineer
Global Packaging and Chemicals Company, Virginia, USA
At the outset, it was interesting to note that ONLY you (PiControl) were able to point at anomalies in data where the same change in SP gives 2 opposite reactions in PID Output. I must admit no other solution provider has noticed this mistake in our copy/paste operations. We were impressed by your unique ability and the closed-loop multi-input identification which makes PiControl technology definitely unique and unmatched.
Core Process Control Engineer
Cement Plant, India
Partner with PiControl

Three ways to begin with PiControl

Swipe
Two engineers reviewing PiControl software on a tablet

From plant data to action

Process simulation, loop tuning, or performance monitoring. Join a short software demo using your own plant data.

Schedule demo
PiControl consultant reviewing a control project with plant engineers

Bring us your toughest problem

Challenging PID loop performance, deteriorating MPC, and badly designed APC logic. Our process control engineers will support you immediately and resolve the issue remotely or on-site.

Request consultation
Engineer in a live online PiControl training session

Get certified in process control

Live classroom in Houston, Zagreb, or on-site at your plant, online, or self-paced. Pick the format that fits you or your team.