An application of connected OT data

Machine condition monitoring in its operating context.

Evaluate machine condition monitoring solutions as one application of connected OT data, alongside production visibility, quality and operational review.

By VIEOX6 min readPublished Updated Read as Markdown
A guarded pump and electric motor with a small wired sensor in a utility room
Equipment condition monitoring
In this seriesOperational guides5 pages

The practical question

How should machine condition monitoring fit into an OT approach?

Connect equipment observations with their source, operating conditions and relevant production history so the responsible team can judge what needs review. Existing measurements, inspections and experience remain the foundation. Treat this as an application of the wider OT data environment, with a defined maintenance question and a clear relationship to production and quality.

Condition monitoring is one application within a broader OT environment. Existing measurements, inspections and equipment knowledge become more useful when a team can relate them to changing duty, production history and the information needed for a maintenance decision.

Build on the monitoring that already matters

A vibration route, a temperature alarm, an oil report and an operator's familiarity with a machine all contribute something. Begin by understanding where your current practice works well and where people still have to search, reconcile records or repeat an investigation. That conversation respects the investment and experience already on the shop floor.

When evaluating machine condition monitoring solutions, identify where an additional module could improve the current practice: clearer context, relevant comparisons, suitable analysis or a more complete record for the maintenance team. Define how it will use the wider OT data environment and judge it against that specific need.

NIST's manufacturing case studies describe varied equipment, limited resources and concern about disruption when introducing technology. Our starting point is therefore a focused operating question and a realistic review of the information already available.

Sources: [1]

Understand a change in the conditions that produced it

If your plant changes products, speeds, loads or schedules, make those changes part of the review. Compare periods that the equipment specialist considers relevant. Preserve the circumstances around unusual behaviour, including start-up, changeover or recent work, so a reviewer can ask whether the comparison still makes sense.

This becomes especially useful when teams must move between different machines and different generations of equipment. Give each reading a clear identity, unit and time reference. Make missing history, uncertain timestamps and changes in measurement visible. A smooth chart should never hide a gap in what the team actually knows.

  • Compare the relevant operating duty, not just the calendar period.
  • Bring operator observations and recent work into the same review.
  • Keep measurement limitations visible beside the interpretation.

Bring production, quality and maintenance into the picture

An equipment concern deserves an operating question: which task could be affected, which team needs to understand it and what other information would help? Consider process behaviour, product checks and the role of connected equipment where they are relevant. This makes the discussion useful to the people planning work as well as those examining the machine.

NIST's machine-tool research connects axis degradation with maintenance, production scheduling and part quality. Its robot work-cell research also examines how components and their relationships affect the wider system. These studies suggest a useful review prompt: look beyond the first component that drew attention.

For your team, that might mean inviting a quality engineer to review an equipment concern, or asking operations which production commitments depend on the asset. The appropriate scope follows the question.

Sources: [2], [3]

Give advanced analysis a clear job to do

A useful proposal might examine several measurements together, highlight departures from comparable behaviour or help a specialist find earlier events worth reviewing. Ask what additional question the method answers and what evidence would demonstrate that it answers it reliably. A clear trend or established engineering method may be enough; an AI model needs to justify the added complexity.

Finding an unusual pattern, explaining a fault and estimating future condition are different tasks. NIST's review of diagnostic and prognostic methods emphasises that forecasts carry uncertainty, including limitations arising from measurements and prediction methods.

For any proposed prediction, ask which equipment and operating conditions it covers, how it was evaluated and how uncertainty will be shown. Treat a convincing demonstration as the beginning of that evaluation. These are approaches to explore during discovery; the appropriate methods and any proposed VIEOX scope depend on your equipment, records and operating requirements.

Sources: [4]

An illustrative situation

Make the next review easier to coordinate

Hypothetical example: a production cell has intermittent position-related alerts, and a quality colleague has noticed a change in inspection results. The maintenance record also shows recent tooling work. Those observations create a useful question; their timing alone does not establish a common cause.

The team checks whether the records concern the same task and period, documents gaps and asks the responsible specialists what further evidence is needed. The planning discussion then considers who can review the concern and the arrangements needed for any authorised inspection.

The useful output is a shared understanding of the concern, the open questions and the next review. Keep the reasons for the decision with the record so the following shift can continue from an informed starting point.

Start with a question your people want answered

Choose one recurring concern and describe what makes it difficult today. Is operating context hard to find? Do repeated alerts require the same manual checks? Does a maintenance discussion lose information between shifts? Agree who will use an improvement and what a useful result would look like.

A 2025 NIST review found substantial differences in how condition-monitoring studies assess performance, economics and uncertainty. Make your own evaluation explicit: the current method, the conditions examined, the review effort and the evidence needed to judge improvement.

VIEOX is a Deep Tech company with an OT-first approach, also providing IoT solutions where they serve the operating need. Condition monitoring is one application area alongside connectivity, production visibility, quality and operational intelligence. ConverEDGE is designed to support a clearer view of current conditions and recorded activity; a proposed monitoring scope starts with your equipment, existing evidence and review process.

Sources: [5]

A useful distinction

Keep the foundation. Add a wider view.

The opportunity depends on your current practice. Use these questions to identify where an additional layer of understanding could help.

The foundation you already have

  • Measurements, alarms and established inspection routines.
  • Specialist knowledge of the equipment and its behaviour.
  • Maintenance records and experience from previous work.

What a more connected review can add

  • Comparisons that account for relevant operating conditions.
  • Related equipment, process and quality information in the discussion.
  • A clearer record of the decision, its reasons and the follow-up.

Put the question to work

A practical checklist

  • Choose one recurring equipment concern and name the people who review it.
  • Map the existing measurements, inspections and experience worth building on.
  • Identify missing operating context and the limits of the available records.
  • Agree what useful analysis, review and authorised follow-up would involve.
  • Evaluate the proposed improvement against your current practice and actual conditions.

Questions, answered

Does this mean replacing our installed monitoring systems?

Begin with what you already use and the question you want to answer. Some improvements may concern how records are understood or reviewed. Others may need additional information. The feasible scope depends on the equipment, available records, access arrangements and site requirements; compatibility should be established during discovery.

Is AI necessary for machine condition monitoring?

Choose the method that makes the review more dependable and useful. Better context, suitable comparisons and experienced judgement can be valuable first steps. Consider AI where there is a clear question, suitable evidence and a meaningful way to evaluate the result. Equipment and maintenance decisions remain with authorised people.

Sources & further reading

  1. NIST — The Current State of Sensing, Health Management, and Control for Small-to-Medium-Sized Manufacturers (2016)
  2. NIST — A Sensor-Based Method for Diagnostics of Machine Tool Linear Axes (2015)
  3. NIST — Identification of Industrial Robot Arm Work Cell Use Cases and a Test Bed to Promote Monitoring, Diagnostic, and Prognostic Technologies (2017)
  4. NIST authors — A review of diagnostic and prognostic capabilities and best practices for manufacturing (2016)
  5. NIST authors — Comprehensive evaluations of condition monitoring-based technologies in industrial maintenance: A systematic review (2025)

A conversation starts here

Bring your question. Let’s explore it together.

If this perspective on condition monitoring connects with your work, tell us what your team is trying to understand. A clear starting question is enough.

Discuss this topic with VIEOX
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