
SERVICE / LEGACY DCS MIGRATION
Legacy DCS Migration
An aging DCS with unsupported hardware, incomplete exports, and no documentation you can trust puts the entire cutover at risk. VALD Engineering is based in Arizona and delivers legacy DCS migration engineering nationwide.


The plant on paper and the plant actually running are rarely identical. Legacy DCS migration starts by reconstructing that installed reality and forcing every contradiction into an engineering decision before design freeze.
One engineering boundary from installed evidence through cutover.
Leitari converts legacy control systems by rebuilding the installed record from native exports, configuration databases, logic, drawings, and field evidence. It logs contradictions and generates the migration package from the same governed evidence our engineers verify.
- 01As-found DCS reconstruction
- 02Contradiction and disposition ledger
- 03Logic, I/O, graphics, and migration mappings
- 04Engineer-validated migration and verification package
Work from the native evidence.
Leitari works with engineering evidence from legacy and current control-system platforms without pretending every source expresses the same thing.
- ABB Symphony
- Westinghouse WDPF
- Emerson Ovation
- AVEVA System Platform
- Rockwell ControlLogix and Studio 5000
- GE PACSystems
VALD has reconstructed hundreds of legacy operator screens and tens of thousands of logic blocks and I/O points into an engineer-governed migration record.
Talk through the problem with the principal engineer.
Send the basics. Robert Maxfield will respond within one business day. Do not paste controlled plant configuration, credentials, or sensitive infrastructure details here.
THE HANDOFF STANDARD
What the client owns after we leave.
No black box and no dependency on a presentation. The record is structured, traceable, and usable by the next engineer.
CONTROLS ASSESSMENT / MIGRATION SCOPING
Scope the problem before it owns the schedule.
Speak directly with principal engineer Robert Maxfield. Expect a response within one business day.