Mipac APC Readiness Audit: Know Where Your Plant Stands Before You Invest
Advanced Process Control (APC) can deliver real gains in throughput, stability, and recovery, but most underperforming APC deployments fail for the same reason: the plant wasn’t ready before the system went live. Mipac’s APC Readiness Audit is a structured, independent assessment that tells you exactly where your instrumentation, control systems, and operational readiness stand before you commit to an APC investment.
What is an APC readiness audit?
An APC readiness audit is an independent assessment of whether a mineral processing facility has the foundational conditions in place for Advanced Process Control to succeed. Rather than starting with software selection, it starts with the plant: instrumentation reliability, control loop performance, data quality, and whether the people who will run the system day to day are ready to trust it.
What’s included:
- Pre-site review of P&IDs, historian data, and control system documentation
- On-site inspection of instrumentation, control loop performance, and signal quality
- Conversations with operators, metallurgists, maintenance personnel, and management
- A prioritised roadmap covering what needs to be addressed, in what sequence, and by whom
- Vendor guidance based on fit for your application, not a commercial relationship
Why it matters:
Most APC underperformance traces back to gaps that were never visible from a desk: instruments that drifted out of calibration, control loops never properly tuned, or operators who were never brought into the process and switched the system off. A readiness audit surfaces these issues before they become an expensive lesson learned on a live system.
Built on Mipac’s six-stage readiness framework
Mipac’s audit moves through six stages: Define, Discover, Assess, Identify, Recommend, and Build a Business Case. Each stage combines remote analysis with on-site engagement, because the most consequential findings rarely show up in a historian or a P&ID.
What this looks like in practice:
- Define – establishing a clear problem statement and APC focus area before any technical work begins
- Discover – on-site engagement with control room operators and supervisors to validate the problem and surface real operational frustrations
- Assess – technical review of instrumentation fitness, control architecture, historian quality, and PID tuning
- Identify – analysis of loop behaviour and control logic to find where APC can deliver the biggest gains
- Recommend – a tailored strategy, infrastructure roadmap, and vendor guidance
- Build a business case – quantified variability reduction potential, ROI estimates, and cost breakdowns
Why it matters:
Mipac’s engineers have audited control systems across multiple commodities and countries. That experience consistently surfaces the same pattern: the most important findings come from walking the plant and talking to the people who run it, not from reviewing systems at a desk.
What readiness gaps actually look like on-site
Instrumentation issues rarely show up the way people expect. A control valve that won’t respond as the data suggests it should might have nothing to do with the model; it might be a maintenance workaround that was never logged anywhere. A historical gap might trace back to a paperwork backlog in the maintenance team, not a technology failure.
Common readiness gaps Mipac identifies:
- Instrumentation that was never resolved before a previous implementation, or has since drifted out of calibration
- Control loops running in manual far more than anyone realised, with no one tracking auto/manual statistics
- APC or advanced control elements are installed but never integrated into the SCADA environment that operators actually use
- A business case built only on software cost, without accounting for instrumentation work, training, and change management
Why it matters:
Sites that skip these foundations don’t fail because the software is wrong. They fail because the groundwork was never assessed. An honest readiness picture changes the trajectory of the entire investment.
When to commission a readiness audit
The audit suits any site considering APC for the first time, any site whose existing APC has drifted, underperformed, or been quietly switched off, and any site wanting a vendor-agnostic second opinion before signing with a provider. Mipac’s recommendations are based on fit for your application, ore type, and in-house capability to sustain the system long-term, not on commercial relationships with any vendor.
Not sure if your plant is APC-ready? Find out in ten minutes.
This self-assessment checklist is designed to help you quickly gauge your site’s readiness for APC. By reviewing these key areas, you’ll identify strengths, uncover gaps, and determine whether your plant is prepared to move forward with an APC Readiness Audit.
If you’ve ticked most of these boxes ‘Yes’, your site may be ready to begin its APC journey.
If not, don’t worry. Our APC Readiness Audit can help close the gaps and build a clear roadmap for success.
Download the APC Readiness Checklist
Or get in touch today, and we’ll set up a call to walk you through the APC Readiness Framework and the audit that will get you started.
