Case study · OEM-orphaned recovery
Recovering controls when the OEM is gone, the in-house team is thin, and parts are obsoleted.
OEM-orphaned control system recovery — reverse-engineering, replacement-panel retrofit, and lifecycle extension delivered under one crew, one schedule, one PO. The line stays under your operation's control at every handoff — the documentation stays with you.
When the OEM disappears, your PLC parts go to six-week lead, your support ticket queue goes nowhere, and the operator-interface language drifts away from anything your maintenance crew can read. The line keeps running on borrowed time until it doesn't — Kraytek puts it back into service on the current vendor stack.
Reverse-engineered controls · replacement-panel retrofit · lifecycle extension · delivered under one crew, one schedule, one PO.
Context
Why the recovery became necessary.
The OEM disappears, the PLC parts go to six-week lead, the support ticket queue goes nowhere, the operator-interface language drifts away from anything the maintenance crew can read. The line keeps running on borrowed time until it doesn't.
Before
- OEM out of business — firmware updates stop, the spare-controller shelf empties, the support ticket queue goes nowhere
- Orphaned ControlLogix/PLC-5 firmware — original program logic, alarm hierarchy, and I/O map captured before the documentation goes cold
- Archived documentation — original prints, ladder, and HMI source vanish before the asset does; documentation reconstructed to current-vendor diagrams
- Replacement-panel retrofit — terminal blocks, wiring, and power distribution replaced end-to-end; same mechanical footprint, same operator-interface language
- Operator-interface language drifting away from what the maintenance crew can read — controlled vocabulary, current vendor stack underneath
Engagement
What the recovery covered.
Kraytek reverse-engineered the original controls stack side by side with the mechanical scope, then wrote the replacement-panel retrofit and lifecycle-extension plan against the original asset. The boundary between controls and commissioning integration went down on day one — every step answerable to the same engineer.
Scope
- Orphaned ControlLogix/PLC-5 firmware
- Archived documentation
- Replacement-panel retrofit
- Lifecycle extension
Delivered
- Audit walkdown → ranked problem list engineering reads
- Reverse-engineering of original controls, alarm hierarchy, I/O map
- Replacement-panel retrofit written against the original asset
- Lifecycle-extension on mature platforms — vendor-current spares
- Documentation + spare-parts plan so the next decade of service stays in-house
- One procurement chain, one installation crew, one commissioning sign-off
Assessment. On-site walkdown of the asset: original controls stack, mechanical condition, fault history, and the support tickets that go nowhere — output: a ranked problem list engineering reads to write the first recovery scope. Migration plan. Reverse-engineering, replacement-panel retrofit, and lifecycle-extension plan written against the original asset — current vendor stack underneath, same mechanical footprint, same operator-interface language. Cutover with documentation handoff. Re-assembly, commissioning, and re-validation under one crew, one schedule, one PO. A documented asset your own team can service without Kraytek on the phone — the documentation stays with you.
Outcome
Same asset, vendor-current stack, documentation handed over.
The asset came back into service on the current vendor stack — same mechanical footprint, same operator-interface language, and the documentation your own team can read without Kraytek on the phone. Lifecycle extension on the mature platform keeps spares on a 24-hour lead, and the next decade of service stays in-house.
After
Kraytek reverse-engineered the original controls and the mechanical scope side by side, re-platformed onto a current vendor stack, and shipped the recovered machine under one crew, one schedule, one PO. Today's spare-parts lead times replace the six-week shelf the OEM left behind — vendor-current spares sitting on the shelf, lifecycle extension on the mature platform written into the documentation.
Documentation + spare-parts plan for the next decade handed over at close. Re-validation against 21 CFR Part 11 / OSHA where applicable, with the paperwork your own team can hand to an auditor without us on the phone. The asset your operation runs on stays in service another decade — under your operation's control, with the handoff artifacts to prove it.
Start the conversation
Have an OEM-orphaned asset that needs recovery?
Send the asset name, the controls stack, and the symptom. Engineering reads every submission — no sales triage, no script.
For quick logistics (a capex number, a sample SOW, a vendor shortlist), the form is the fastest path — every question fields an answer.
Mention "OEM-orphaned recovery" in the asset line so we route the conversation to the engineer who closed the case above.