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TwinCAT 3 · Structured Text · EtherCAT

Turn a difficult TwinCAT system into a controlled, testable and supportable production asset.

Axiotech undertakes new development, architecture, recovery, migration and lifecycle support across PLC, EtherCAT, HMI, motion and machine interfaces—with the source and handover evidence treated as part of the engineering product.

Good fit

Use this service when

  • OEM or production systems where Beckhoff IPCs, TwinCAT 3, EtherCAT or ADS form part of the control stack.
  • Projects needing a defined software work package, independent review, recovery plan or controlled extension.

Scope boundary

Not assumed or silently included

  • Safety validation or statutory conformity assessment unless explicitly included and resourced by competent specialists.
  • Unbounded live changes to production code without a baseline, rollback plan and named customer release authority.

Why act

The operational risk behind the technical symptom

The first work package is shaped around reducing an explicit risk or enabling a named decision.

01

An unknown source/runtime baseline makes every change harder to reproduce or reverse.

02

Coupled sequence logic and weak diagnostics extend fault-finding and site recovery.

03

Uncontrolled libraries, mappings and settings create hidden differences between machines.

Purchasable entry points

Choose a bounded engagement before expanding scope

Final inclusions, dependencies, location, schedule and commercial terms are confirmed in a formal quotation.

Package 1

TwinCAT health & recovery assessment

Decision enabled: A verified baseline, priority risks and a recovery/change plan.

Typical scope: Source/runtime comparison, version and library inventory, I/O and dependency review, backup/recovery check, findings workshop.

Package 2

Defined development work package

Decision enabled: An approved function delivered against explicit acceptance evidence.

Typical scope: Requirements clarification, design, implementation, review, simulation or bench test, controlled release and handover.

Package 3

Lifecycle support

Decision enabled: A governed route for incidents, changes, versions and knowledge retention.

Typical scope: Baseline maintenance, diagnostic support, planned changes, release records, recovery drills and obsolescence review as agreed.

Artefact manifest

What remains after the engineering work

The exact document set scales with risk and the approved work package.

  • Controller, runtime, library and source baseline
  • Software architecture and module design record
  • I/O, device, interface and symbol schedules
  • Test specification, results and defect disposition
  • Release note, backup/recovery pack and residual-risk record

Technical and responsibility boundaries

Make ownership reviewable

  • Customer identifies the machine owner, release authority and permitted test environment.
  • Electrical, mechanical, safety, network and third-party responsibilities are named before design approval.
  • Production deployment follows an agreed backup, rollback, access and shutdown plan.

Review and acceptance

Six gates from authority to handover

Gate depth changes with the work; named decisions and evidence remain.

  1. G0
    Scope authorityOutcome, boundaries, roles, assumptions and commercial basis agreed.
  2. G1
    Baseline acceptedKnown installed/source state, dependencies, constraints and unknowns recorded.
  3. G2
    Design approvedRequirements, interfaces, risks and acceptance evidence ready for implementation.
  4. G3
    Release candidateBuild reviewed, verified, versioned and accompanied by defect disposition.
  5. G4
    Site acceptanceCommissioning evidence, deviations and release decision recorded.
  6. G5
    Handover acceptedSource, configuration, records, recovery and residual risks transferred.

Read the complete delivery method

Assurance option

Compliance is a declared scope—not a badge

Where a regulated use is declared, the same software work package can be extended with intended-use, risk, traceability, review and verification evidence aligned to the customer quality system. This does not transfer the regulated organisation’s validation ownership to Axiotech.

Review validation services

Relevant engineering evidence

TwinCAT requirement-to-release evidence model

A demonstrable structure connecting machine states, modules, interfaces, tests, release records and residual risk without making an unapproved customer-performance claim.

Review this evidence

Procurement FAQ

Questions to resolve before quotation

Can you work with an incomplete or undocumented project?

Yes, but recovery starts with evidence capture and a trusted baseline. Unknowns are recorded, not silently converted into assumptions.

Do you support TwinCAT 2 migration?

A migration assessment can map the application, hardware, libraries, fieldbus, motion and shutdown constraints before a TwinCAT 3 implementation is quoted.

Can source remain in our repository?

Yes. Repository ownership, access, branching, review and release responsibilities are agreed as part of the work package.

Next decision

Describe the outcome, installed baseline and constraints you already know.

Use “Not known” where evidence is missing. The first review will separate facts, assumptions and discovery work.

Scope Beckhoff TwinCAT PLC engineering