See the whole controller at once
One view of the export: Studio 5000 revision, processor, programs, routines, rungs, tags, data types, and add-on instructions. Import diagnostics tell you up front whether anything in the file needs attention.
The AI workspace for industrial automation
Understand any Studio 5000 project in minutes.
Chelix reads a Rockwell L5X export, indexes every program, routine, tag, and data type, and answers questions with the exact rung it is reading pinned in view.
Free to try · No install · Your .L5X never leaves the browser
Byte-identicalYour revision, processor & structure preserved on export
17 instructionsTyped, validated authoring catalog — XIC to GEQ
6 check layersSyntax, instruction, type, scope, cross-ref & policy
0 uploadsParsing & analysis run in your browser, not our cloud
Software developers got Cursor. Controls engineers are still tracing logic rung by rung.
Modern AI tooling transformed how software gets written, then stopped at the factory floor. Chelix carries it the rest of the way, starting with the worst part of the job: understanding logic you didn’t write.
- You didn’t write it
- The project arrived from a retired engineer, an acquired plant, or a contractor three jobs ago. There is no documentation, and there is nobody left to ask.
- Tracing eats the day
- A fault traces back through seal-ins, cross-references, and nested routines. Studio 5000 shows one rung at a time; the full picture has to live in your head.
- Onboarding takes weeks
- Every new hire relearns the same undocumented line the hard way: scrolling ladder until it starts to make sense.
Built for controls engineers, system integrators, contractors, students, and the new hire who just inherited the line.
Upload an L5X. Understand it before your coffee’s cold.
The full first-use experience is free: no install, no license transfer, no risk to your live project.
- 01
Upload an L5X
Drop in a Studio 5000 export. Large, unfamiliar, and undocumented is fine. Nothing to install.
- 02
Explore the project
Chelix indexes the controller: programs, routines, tags, data types, and how they reference each other.
- 03
Ask questions
Plain English in, grounded answers out, pinned to the exact program, routine, and rung being read.
- 04
Propose changes
Describe an edit. Chelix builds a typed change proposal, validates it, and shows you the diff.
- 05
Export to Studio 5000
Download a clean .L5X with your revision, processor, and structure intact.
Understanding first. Editing when you’re ready.
General-purpose AI writes plausible text. Chelix reads the structure, constraints, and consequences of real control logic, and shows its work.
Ladder you can actually read
Rungs render Studio-style, with contacts, coils, branches, timers, and the original comments. Search across the project for a tag and land on every rung that reads, writes, or seals it in.
Answers pinned to your logic
The assistant works inside a context you can see: the exact program and routine it is reading is pinned above every exchange. Questions get answers about your rungs and your tags, not generic PLC advice.
Changes arrive as proposals
A request becomes a typed operation with an understood intent, a validation report, and a diff. The proposal is built and checked in seconds, then it waits for you.
Edits are proposals. Your judgment is the gate.
When you ask for a change, Chelix compiles it into typed ladder operations, runs layered validation, and pins the result to a proposal. Nothing lands until you have read the diff and approved it.
safety-related-descriptionalias-writenew-duplicate-coil
- Layered validationSyntax, instruction, type, scope, cross-reference, and policy checks run on every proposal before you see it. Findings are named and classified, not buried in a log.
- Object-linked diffsReview each operation as before/after ladder, as a structured operation, and as raw Logix source, with a link to the object it touches.
- Deliberate approvalApproving binds the complete diff to the exact source you reviewed. If the project changes underneath, a stale approval no longer applies.
- Audit-ready exportEvery approved change lands in a chained audit record, and the export downloads your .L5X together with that audit trail.
Starts with understanding. Built to become the whole workbench.
Chelix begins with the pain you feel today. Editing is here; collaboration and version control for control logic come next; the destination is one modern workspace for automation work on any vendor’s platform.
NowUnderstand · Edit
NextCollaborate · Version control
DirectionVendor-agnostic workbench
Built by someone who has stood on the factory floor and shipped modern software. Industrial reliability, without the industrial-software feel.
Try it free
Bring the next unfamiliar project here first.
Upload an L5X, explore it, question it, and export it back to Studio 5000. If it saves you an afternoon of tracing, it has paid for itself; it is free anyway.
Upload an L5XFree to try · No install · Your .L5X in, a clean .L5X out