Explain ladder logic, generate new code, document programs, and debug faster. Runs on your desktop machine and you are in full control.
Comparing AI for PLC work? Read the side-by-side comparison →
Watch how PLC Copilot accelerates your workflow. It gives you the speed of generative AI without sacrificing the safety, determinism, and reliability required for the factory floor.
Whether you are commissioning a new program or reverse-engineering an undocumented legacy program, stop wasting engineering hours on paperwork.
PLC Copilot instantly digests your logic and exports presentation-ready documentation for your entire workflow, including Control Narratives, Input/Output (I/O) Lists, Tag Databases, Cause and Effect (C&E), and testing procedures for FAT and SAT.
This is days of work that should take minutes.
Understand a program you didn’t write, find why something isn’t running, and create docs for the next person.
PLC CopilotNo comments or confusing tag names? No problem. PLC Copilot can descipher any program for you.
You don't have to upload your company's IP to a random website. Use PLC Copilot locally, and get clear explanations.
When the system is glitching, you shouldn't have to hunt every rung. Describe the symptoms and PLC Copilot points at the rungs that cause the problem.
You've spent months on a project. Documentation should not be an extra burden.
Ask PLC Copilot for comments and a narrative from the current program. You get a draft in under 2 minutes.
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
Not another wrapper. 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).
Upgrading a legacy system requires understanding exactly how it behaves. Tracing thousands of rungs and tags can take days, if not weeks.
PLC Copilot turns the legacy logic into human-readable explanations so you can reverse engineer the old program into modern architectures.
You can run multiple PLC Copilot instances in parallel, each working independently, or load multiple projects in a single workspace to have the agent cross-reference the logic.
Generate new logic with confidence. 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 review every rung before it touches your project, and you have the control to revert any AI changes you do not want to keep.
Let's be honest, documentation is boring. Generic AI tools provide convincing but wrong information. PLC Copilot has guardrails to ensure the validity of the output.
PLC Copilot reads the source project and drafts documents from what is actually in the controller. You review the output, fix wording where needed, and ship records your client and maintenance team can follow.
“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. PLC Copilot acts as a 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.
