Jul 2026 v1.5
AI Agent v2 - multi-rung generation and auto-wiring
Plaxio is the desktop IDE for industrial automation.
Compatible with leading PLC vendors and platforms
Rockwell Automation
Siemens
Schneider Electric
Mitsubishi Electric
Omron
Beckhoff
ABB
Codesys
Write PLC logic faster than ever
Describe your control requirements in plain language. Plaxio's AI agent generates IEC 61131-3 Ladder Diagram rungs — motor start/stop, timers, fault resets — and wires them directly into your project.
Graphical and code — side by side
Switch between the visual FBD graphical editor and the underlying JSON source in one click. Every node, connection, and tag is editable in both views, always in sync.
Lossless vendor export
Export your project to Rockwell L5X, Siemens SimaticML, Schneider XEF, or vendor-neutral PLCopen XML. Pre-export validation catches errors before they reach the PLC.
Live tag monitoring and editing
Inspect and edit every tag — output coils, set/reset coils, latch coils — from a live Tag Monitor panel. See real-time values, add tags on the fly, and verify logic without leaving the editor.
Built-in HMI simulation
Design and test SCADA/HMI screens with a fully integrated simulator. Connect your ladder logic to live HMI widgets — tanks, valves, pumps, gauges — and validate your entire control system without hardware.
The new standard for industrial controls.
"Deployments that used to take weeks of manual tag checking and commissioning are now done in minutes. Plaxio is an absolute game-changer for control engineers."
Diana Chen Director of Automation, Grid Solutions
"By combining traditional IEC editors with local LLMs, our engineering team has drastically accelerated logic drafting and safety verification."
Marcus Vance VP of Control Systems, Vanguard Automotive
"The offline HMI simulator integration is brilliant. You can edit Ladder Logic and immediately interact with the running simulation on your local laptop, with zero PLC hardware required."
Sarah Jenkins Principal SCADA Architect, Nexus Energy
"Importing our legacy Rockwell L5X projects into Plaxio took seconds. The AI correctly parsed the tag databases and generated clean Structured Text without any loss of logic."
David K. Lead Systems Integrator, Automation Corp
"Having a modern, VS Code-based editor with git-readiness and local AI features on the plant floor is something controls engineers have been waiting decades for."
Julian Croft Founder, Controls.dev
"Plaxio runs completely offline, meaning we don't have to worry about data leaks or factory-floor internet connectivity. It's the most secure PLC environment available."
Elena Rostova Head of Infrastructure, Euro-Logistics
Stay on the frontier
AI-powered PLC programming
Generate ladder diagrams, function blocks, and structured text from natural language. The AI agent writes files, validates IEC compliance, and pushes to the simulator.
IEC 61131-3 compliant editor
Full Ladder Diagram, Function Block Diagram, and Sequential Function Chart editors with real-time simulation and live tag monitoring.
Lossless vendor export
Export to Rockwell L5X, Siemens SimaticML, Schneider XEF, or PLCopen XML with 100% round-trip accuracy verified on real vendor files.
Changelog
Jun 2026 v1.4
Live Tag Monitor with real-time forcing
May 2026 v1.3
PLCopen XML and Siemens SimaticML export
Apr 2026 v1.2
Function Block Diagram editor with graphical/code toggle
Built for the future of controls engineering
Plaxio combines IEC 61131-3 compliance with modern AI capabilities, enabling control engineers to work faster without sacrificing standards.
