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Engineering solution

MES, Historian & ERP Integration

We connect the layers of manufacturing IT that usually communicate through spreadsheets and re-typing: machine controls to historians, historians and quality data to MES functions, and production events to ERP. Scope includes integration architecture, data mapping, middleware or custom services, and the testing that makes the connections trustworthy.

Why this solution exists

Most plants already own the pieces — PLCs, a historian or SCADA, an ERP, maybe an MES — but the pieces do not speak. Orders are re-typed at the line, production counts are keyed back into ERP, and quality lives in isolated files.

Integration engineering closes those gaps deliberately: define which system owns each fact, map the data both directions, and implement robust interfaces — standard connectors where they exist, engineered services where they do not.

This is a strong fit when

  • Plants re-typing data between production and business systems
  • Sites with a historian that only stores, never informs
  • MES or ERP rollouts that need reliable shop-floor connectivity
  • Manufacturers needing genealogy, OEE, or electronic production records

Scope

What the work includes

Architecture

  • Current-state mapping of systems, data, and manual re-entry points
  • System-of-record decisions and data-flow design
  • Interface specifications per connection, including failure behavior
  • Security and segmentation review with your IT/OT teams

Implementation

  • PLC/edge data collection and normalization
  • Historian configuration and context modeling
  • Middleware, APIs, and custom services where standard connectors fall short
  • Dashboards and reports for the delivered flows
  • End-to-end testing including failure and recovery scenarios

Required inputs and deliverables

What we need from you

  • Inventory of systems and versions in scope
  • The specific flows to eliminate or automate first
  • IT/OT security requirements and change-management process
  • Vendor support contacts for the systems being connected

What you receive

  • Integration architecture and interface specifications
  • Implemented, tested data flows with failure-mode behavior verified
  • Monitoring or logging for each interface
  • Documentation enabling internal teams to operate the integrations

Project process

How the engagement runs

  1. STEP 1

    Map the current state

    Document systems, data, and every manual bridge between them.

  2. STEP 2

    Design the flows

    Decide system-of-record, direction, and failure behavior per interface.

  3. STEP 3

    Implement incrementally

    Deliver one flow at a time, starting where manual effort or error is worst.

  4. STEP 4

    Test failure modes

    Prove behavior when a system is down — queues, retries, and reconciliation.

  5. STEP 5

    Operate & extend

    Hand over monitored interfaces and extend to the next flows on evidence of value.

Which system should own which data

MES, Historian & ERP Integration: which system should own which data
DataSystem of recordWhat happens when two systems own it
Orders and scheduleERPThe plant runs to a schedule the business does not recognise
Recipes and parametersMES, or the controller where that is the agreed sourceProduct is made to two different definitions
Process values and eventsHistorianTrends disagree with the reports drawn from them
Machine state and countsThe controller, historisedOEE is calculated twice and gives two answers
Quality resultsLIMS or MESRelease decisions get made on stale data
Maintenance historyCMMSWork is recorded in one place and planned from another

Risks and limitations we state up front

  • ERP-side changes often require the ERP vendor or internal IT; those dependencies are identified in the architecture phase.
  • Integrations inherit the weaknesses of the systems they connect; data-quality problems are surfaced, not silently passed through.
  • Big-bang integration programs fail more often than incremental ones; our approach is deliberately flow-by-flow.

What drives cost and schedule

We do not publish fixed prices: these are the factors that determine effort. A scoped proposal follows the technical fit review.

  • Number and age of systems being connected
  • Availability of supported connectors versus custom interface work
  • Data-volume and latency requirements
  • Validation depth required in regulated environments

What this engagement is not

Integration cannot settle a definition dispute. Where two departments genuinely disagree on what a metric means, that decision is theirs to make; the engagement surfaces it early rather than encoding one side's answer silently.

Last reviewed by Geek Engineering senior engineering review.

MES, Historian & ERP Integration: common questions

Do we need a full MES to get value from integration?

No. Many plants get their largest early wins from targeted flows — automatic production counts to ERP, order download to the line, or historian-backed OEE — without buying an MES platform. Where a full MES is justified, the same integration groundwork supports it.

Our historian collects everything but nobody uses it. Can that be fixed?

Usually the data lacks context: tags without asset models, no product or batch linkage, no defined consumers. We restructure the context model around the questions the plant actually asks, then deliver the reports and dashboards that make the historian earn its license.

How do you handle interfaces when one system goes down?

Failure behavior is specified per interface before implementation: buffering and store-and-forward where data must not be lost, clear staleness indication where displays must not mislead, and documented reconciliation for anything that queued during the outage.

Whose side are you on — IT or OT?

Both, by design. The work sits exactly on that boundary, and the architecture phase includes both teams' requirements: OT's determinism and uptime constraints, IT's security and lifecycle standards. Interfaces that ignore either side do not survive.

Discuss this solution with a senior engineer

Describe your equipment, objectives, timeline, and constraints. We will confirm whether this solution fits — and say so plainly if it does not.

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