Explain ladder logic, draft new rungs, document programs, and debug faster. Load a project export, ask about the logic, get answers tied to real tags and rungs. Runs on your machine. You verify everything before it ships.
Comparing AI for PLC work? Read the side-by-side comparison →
Watch how PLC Copilot accelerates Ladder Logic and Structured Text programming. From decoding legacy routines to instant fault debugging. Built specifically to handle complex control systems without losing precision.
PLC Copilot has been vigorously trained to understand IEC 61131-3 programs. It can read Ladder Logic (LD), Function Block Diagrams (FBD), and Structured Text (ST).
PLC CopilotTracing thousands of rungs and tags by hand can take days. Use that explanation to map old behavior into a new architecture without guesswork.
PLC Copilot turns the legacy logic into human-readable explanations so you can reverse engineer the old program into modern architectures.
Whether you’re starting a new project, or you want to offload repetitive work, PLC Copilot generates logic you can actually trust.
It operates within strict IEC 61131-3 guardrails to deliver validated, import-ready results. With our human-in-the-loop workflow, you have the control to revert any AI changes you do not want to keep.
Whether you are commissioning a new program or reverse-engineering an undocumented legacy program, stop wasting engineering hours on paperwork.
PLC Copilot instantly analyzes your logic and generates presentation-ready documentation for your workflow.
For troubleshooting, PLC Copilot does the heavy-lifting of the manual code review, pointing your team directly to the root cause. It removes the guesswork, allowing the technicians to step in and apply the fix immediately. Here is how our customers are turning expensive downtime into quick, predictable fixes.
Offline and on-premises options are available. The online plans send chunks of your request to our servers where it is processed. See our Privacy Policy for more details on how we protect your proprietary information.
Ladder logic is proprietary. Often under NDA. No one, not even our team, can view or execute your source in context.
The AI works in an isolated local environment, communicating over an encrypted channel to ensure that your code remains private and secure.
Some teams prefer to use their own servers, some can't connect to the internet at all. We can accomodate your needs in our enterprise plan.
Local-first by default
“It just saved me a boat load of time trying to figure out how someone else's undocumented spaghetti works. Where in the past I would have probably trashed it and rewritten, now I can document the program so others can benefit.”
Controls Engineer, 25 Years of experience in automation
PLC Copilot is trained to understand all and every PLC program. We're rolling out support for more vendors one at a time to ensure the best possible experience.
Success stories from our users.
The engineer who wrote it retired in 2019. I had two weeks to present a plan for upgrade. I ran Copilot across the whole project on a Monday, and the entire project was deciphered in a day.
Asked Copilot why process was stuck. It pointed at a latched interlock tied to a guard-door input that was stuck low. Swap a proximity sensor, line back up in 40 minutes.
The goal was to get new hires up to speed as soon as possible without burning weeks from someone else's calendar. Even veterans used to hit the same wall when trying to decode someone else's code. PLC Copilot acts as a patient companion available on demand, answering foundational questions so new hires can get up to speed quickly.
Answers to the most common questions before you get started.
