The best AI tool for PLC programming

Your PLC Copilot forDocumentation

PLC Copilot is world's first vendor-agnostic AI Assistant that provides code review, ladder logic generation, documentation, and debugging in plain-language.

Vendor-agnostic
Private & Secure
Enterprise Grade Intelligence
New Release · Studio 5000 Support

PLC Copilot now
speaks Studio 5000.

Seemlessly integrates with Rockwell Studio 5000 IDE. Fully trained for Allen Bradley ControlLogix, CompactLogix, and GuardLogix series.

.L5XNative project file
Studio 5000v33+ supported
~3 minInstall to first answer
DownloadDownload & Use Immediately. No long email chains.
The problem

Every plant has
this problem.

Engineers inherit undocumented PLC programs from a former employee who retired three years ago. Some may call it job security

The new engineer is tasked to upgrade the production line. They're tracing contacts backwards through dozens of subroutines to find the interlock that is stopping the pump.

This is days of work that should take minutes.

PLC Copilot fixes this in minutes

MAIN_ROUTINE.L5X
5,247 rungs
0000--| |---| |----| |------( )--
0001--|/|---|/|----+--| |---+--( )--
0002--| |---|/|---+---( )--// TODO: why?
0003--| |---| |----| |---|/|---(L )--
0004--|/|----+-----| |---+-----(U )--
0005--| |---| |---|/|----| |--------( )--
0006--| |--------|/|-----------( )--
0007--| |---| |---| |---| |----( )--
0008--|/|---+-----| |----+-----( )--
0009--| |----------------------( )--
0010--| |---| |----| |------| |----( )--
0011--|/|-------+-----| |--+-------( )--
0012--| |---| |--------------------( )--
0013--| |----+----|/|--+---| |--=--( )--
0014 …
0015 …
Live demo

See it on real
ladder logic.

Actual questions automation engineers ask every day, answered against IEC 61131-3 projects with thousands of rungs.

Main_Routine · 3,412 rungs3 highlighted
0840—[ ]—[ ]——[/]———————————————( )—
0841—[ ]———————————————————————(L )—
0842—[ ]—[/]——[ ]———————————————(U )—
0843—[ ]—[ ]——[/]———————————————( )—
0844—[ ]———————————————————————(L )—
0845—[ ]—[/]——[ ]———————————————(U )—
0846—[ ]—[ ]——[/]———————————————( )—
0847—[ ]———————————————————————(L )—
0848—[ ]—[/]——[ ]———————————————(U )—
0849—[ ]—[ ]——[/]———————————————( )—
0850—[ ]———————————————————————(L )—
0851—[ ]—[/]——[ ]———————————————(U )—
0852—[ ]—[ ]——[/]———————————————( )—
0853—[ ]———————————————————————(L )—
What triggers rung 847 to energize?
PPLC Copilot
Rung 203Rung 412Rung 847
Ask about your project...
How it works

Three steps.
A familiar chat interface.

PLC Copilot: open your project, ask in plain English, jump to the cited rung.
Open PLC project
/ ProjectsPLC
Line_A_2021
Line_B_2019
Line_C_2024
Testbench
Archive
MAIN_ROUTINE.L5X5,247 rungs
SAFETY.L5X412 rungs
CONVEYOR_MASTER.L5X1,893 rungs
PACKAGING.L5X978 rungs
HMI_TAGS.xml
Open
Step 01

Load your project

Point PLC Copilot at your existing project file. The AI looks at the relevant rungs, tags, and subroutines to answer your questions.

Ask Copilot · CONVEYOR_MASTER.L5X
Suggested
› Trace every interlock on CV_Main
› Summarize rungs 820–860
› What latches Motor_3_Run?
>
Step 02

Ask in plain English

No syntax. No query language. Ask it the way you’d ask the engineer at the next desk.

Answer

Pump_2 is held OFF by an interlock at Rung 847.

Safety input I:3/12 (E-Stop bank 2) is de-energized. The latch on B3:4/2 will not clear until E-Stop is reset and Start_PB is pressed.

Jump to rung 847 →
RUNG 847
--|/|----| |----| |------( )--
--|/|----| |----| |------( )--
--| |----| |--------------( )--
I:3/12 · E-Stop bank 2
Step 03

Jump to the exact rung

Answers cite the rungs, tags, and subroutines involved. Review the suggestions made by PLC Copilot and apply them to your project.

Overview of PLC Copilot infrastructure and product capabilities
What you can do

The tasks you’ll hand off today.

Not another wrapper. PLC Copilot has been vigourously trained to understand IEC 61131-3 programs. It can read your rungs, cross-reference tags, and explain your controller settings to give you back the time you lose tracing them.

Code review01

Explain logic across multiple projects.

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 in seconds so you can map the old behavior into modern architectures without guesswork.

You can run multiple PLC Copilot instances in parallel, each working independently on a different plant, line, or migration project.

Placeholder preview for code review workflow
Logic Generation Assistant02

Let the AI give you a blueprint.

Whether you’re starting a new project and need to brainstorm control strategies, or you want to offload repetitive build work, PLC Copilot can generate the logic.

Use AI drafts for common patterns, repeated interlocks, and routine scaffolding, then review each rung, tune it to site constraints, and adapt it directly into your project standards.

Documentation03

PLC Documentation on Autopilot

Auto-write rung comments, structured tag tables, input/output mapping, control narratives, subroutine summaries, and the supporting detail teams usually leave until the end of the job.

Review in bulk, tighten wording where it matters, and keep documentation aligned with the revision you’re shipping, not a stale export from last year.

Export as CSV for spreadsheets, tag lists, and row-oriented handoffs, or as plain text for submittals, SOPs, FAT/SAT packages, and narrative blocks you can paste into any template.

PLC Copilot can create structured documentation from your program on Autopilot
Security & privacy

Your PLC code
stays on your
local machine.

Offline and on-prem options are only available for enterprise plans. 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.

Security
01

Private, for all plans

Ladder logic is proprietary. Often under NDA. Nobody, not even us, can view or execute your source in context.

02

Secure by design

The AI works in an isolated local environment, communicating over an encrypted channel. Ensuring that your code remains private and secure.

03

Offline option available

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 · read-only on your project file by default

Integrations

Integrates with the IDE
you already use.

PLC Copilot is trained to understand all and every PLC program, regardless of the vendor. We're rolling out support for more vendors one at a time to ensure the best possible experience.

Supported
Allen Bradley, Rockwell Automation

Studio 5000

ControlLogix · CompactLogix · GuardLogix
Supported
AutomationDirect

Productivity Suite

P1000 · P2000 · P3000
Coming soon
Siemens

TIA Portal

S7-1200 · S7-1500 · ET 200SP · S7-300 · S7-400
Coming soon
CODESYS Group

CODESYS

IEC 61131-3 programmable devices
Don’t see your platform?Request it →
Overview of PLC Copilot integrations and supported platforms
Running on real plant floors
“ I commend you on this PLC Copilot. 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. Thank you! ”
M
Controls engineer since 1991Private beta
20hrs/month savedGiving back time to focus on what matters
14 IndustriesFlexible to a wide range of needs
16 CountriesProviding services globally
Used by engineers at
MANUFACTURING
TIER-1 AUTO
FOOD & BEV
PACKAGING
PHARMA
Situations

Three situations
you’ve been in.

Real scenarios from beta users. Names withheld, facts real.

Legacy project

Inherited 6,000 rungs. No documentation.

The engineer who wrote it retired in 2019. I had two weeks before the audit. I ran Copilot across the whole routine on a Monday, reviewed the generated rung comments the same afternoon.

Project mapped in a day, not two weeks.Controls engineer
Tier-1 automotive supplier
Downtime response

Troubleshooting issues in record time.

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.

Back up in under an hour.Senior automation engineer
Food & beverage plant
New hires

Onboarding made easy.

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.

New hires get up to speed quickly.Controls team lead
Packaging OEM
WHO BUILT THIS

We’ve been
in the cabinet
at 2 AM.

We spent years commissioning lines and debugging logic on concrete floors. We know the pressure when a line is down and every minute counts.

Automation has zero room for error. We built Forge because we needed a tool that understands industrial logic, respects the risk of a real plant floor, and actually helps you get the job done faster.

Engineered in Seattle, WA

Frequently Asked Questions

Answers to the most common questions before you get started.

Start today

Stop tracing rungs
Focus on what matters

~3minInstall, no IT ticket
Vendor-agnosticWorks with most PLCs
Air-gapFully offline option