Virtual commissioning
Virtual commissioning with Emulate3D: what can be tested before installation?
How to turn an automation model into a controls test environment, choose useful scenarios and document what still needs physical verification.
Virtual commissioning uses a model to exercise the agreed control logic and equipment behavior. Its usefulness depends on the signals, scenarios and fidelity included in the model, together with a defined test plan.
Move from an animation to a testable system
A model that shows the intended sequence is useful for discussing a concept. A virtual commissioning model has an additional job: it must exchange the signals and represent the behavior needed to test the controls.
Rockwell Automation describes Emulate3D as supporting virtual controls testing and commissioning. Spinula uses Emulate3D for this work. The scope should establish which equipment is modeled, which control environment is connected and which behaviors will be evaluated. See Rockwell’s Emulate3D overview.
Start with normal operation
Write the expected sequence in terms the controls and mechanical teams can both review. Identify commands, sensor transitions and conditions that allow the next operation to begin. Then establish how each relevant signal is represented in the model.
For example, an agreed test might follow a part through arrival, detection, clamping and transfer. The test needs defined starting conditions and expected outcomes. Watching a cycle complete once is less informative than recording whether the specified conditions were satisfied.
Choose exception scenarios deliberately
Normal operation is only part of integration. Discuss what the control system should do when expected feedback is absent, an operation is interrupted or downstream equipment is unavailable. Select the scenarios that matter to the project rather than trying to model every possible failure.
| Illustrative scenario | Question for the test plan |
|---|---|
| Part-present signal is missing | Does the sequence respond as specified, including the expected indication? |
| Downstream station is unavailable | Does transfer wait under the agreed coordination logic? |
| Operation is interrupted | What state is retained, and what conditions are required before restart? |
| Selected device feedback is delayed | Does the modeled timing exercise the intended timeout behavior? |
These are examples for defining scope, not proof that a particular machine behaves correctly. Fault simulation requires the corresponding device behavior and signals to be represented. Missing model behavior can leave a test incomplete even when the displayed sequence looks plausible.
Agree on interfaces before building detail
Provide the layout, equipment information, operating sequence, I/O list and available PLC program. Identify the controller platform, software versions and required connection method. If HMI testing is needed, include the relevant application and operator interactions in the scope.
Resolve signal definitions with the controls team. A list of tag names does not always describe when a signal changes or what it means. Document assumptions where detailed device information is unavailable, and decide which assumptions must be resolved before a test can be accepted.
Make findings reproducible
A useful test record identifies the model and program versions, starting conditions, expected behavior, observed result and the disposition of any issue. Assign responsibility for reviewing changes and define which tests should be repeated after a revision.
This record supports a more focused handoff. It also distinguishes an untested scenario from a tested scenario that met the agreed criteria. Virtual FAT activities should have an agreed scope and acceptance process, including who reviews the evidence.
Define what remains for the installed machine
Virtual commissioning complements physical work. Actual wiring, equipment setup, mechanical behavior and machine safety functions need appropriate verification on the installed system. A model cannot establish facts about physical details it does not represent.
Cycle time and throughput claims also need care. A model built primarily for sequence testing may not contain the motion or process fidelity needed for a production-performance prediction. Define that purpose explicitly if it is part of the project.
Start with a focused scope
Identify a cell or subsystem, the control questions that matter and the date when findings can still influence the project. Agree on a small set of useful tests, the required inputs and the intended deliverables before expanding the model.
Spinula’s Emulate3D virtual commissioning service starts with those decisions. The objective is to give the project team actionable findings within a defined scope; a fixed startup-time reduction is not assumed.
Apply this to your project
Turn your question into a defined study.
Tell us about the application, available data and the decision you need to make.
