PLCs.ai

What PLCs.ai does

PLCs.ai is the first AI purpose-built for industrial automation, designed to help engineers understand, maintain, and run PLCs more effectively. It translates complex PLC code into plain English, enabling anyone in an operation to understand, question, and build on any PLC program. The platform offers instant troubleshooting, specific code generation, and 3D line context, providing a full picture of the production line. It addresses the problem of institutional knowledge loss when experienced PLC engineers leave, making critical operational knowledge accessible to all. PLCs.ai supports major PLC platforms like Siemens TIA Portal and Rockwell Studio 5000, with more vendors coming soon. It ensures data isolation per customer, encryption, and never uses customer data to train its AI models. The platform offers two modes: 'Explain' for analysis and problem-solving without code changes, and 'Generate' for expert users to make and test code changes with full context-aware generation and review. It also features unified context for multiple PLCs on a single line, cross-PLC reasoning, and line-specific skills for industrial automation tasks.

Products

• PLCs.ai PlatformA purpose-built AI platform for industrial automation that helps engineers understand, maintain, and run PLCs. It translates complex PLC code into plain English, offers instant troubleshooting, specific code generation, and 3D line context. It supports Siemens TIA Portal and Rockwell Studio 5000, with data isolation and encryption for each customer.
• PLCs.ai APIA stable, versioned HTTP API for interpreting PLC code from external tools. It allows sending prompts about Allen-Bradley or Siemens projects to get cited, plain-language answers, generate or modify PLC code, open stateful troubleshooting threads, and start async analysis jobs.

Key capabilities

• Turns complex PLC code into plain English
• Understand any PLC program (legacy or modern, documented or not)
• Data isolated per customer
• Customer data not used to train AI
• Encrypted data at rest and in transit
• AI Expert Companion for instant understanding of production cells and PLC code
• Instant Troubleshooting with plain-language insights
• Specific Code Generation that maintains logic, dependencies, and standards
• Automatic safe generation for review before changes are saved
• 3D Line Context to understand multiple connected PLCs
• Full Context, Every Query (approved code examples, organization standards, specs, reference documents)
• Project backup and restore
• Automatic generation of AI documentation across lines and plants
• Explain Mode (no code change, for any engineer)
• Generate Mode (with code change, for experts)
• Unified context for multiple PLCs on a single intelligent surface
• Cross-PLC reasoning across controllers on the line
• Line-specific skills (e.g., cycle time, handshakes, state, signal trace)
• Plain English Q&A across vendors (e.g., Allen-Bradley and Siemens)
• AI-driven analysis for clear insights into production lines
• Natural language code generation
• Immediate AI root cause analysis to reduce downtime (MTTR)
• Standardize code across every line and plant
• Manufacturing Skills toolbox (e.g., /cycle-time to detect waiting times and bottlenecks)
• Component extraction with detailed explanations
• Dependency understanding (control hierarchies, feedback loops)
• Alarm extraction, grouped and sorted by severity
• Process sequence listing with details on states and timing
• Version control integration (GitHub, GitLab, Bitbucket, Copia, octoplant)
• Desktop Companion App
• Unlimited collaborators/users (no seat fees)
• 800 AI queries per project per month (estimated for 5MB project)
• PackML & ISA-88 support
• MFA / TOTP
• OAuth 2.0
• Cloud deployment
• Enterprise features: SSO, SAML 2.0 / OIDC, Audit logging, SOC 2, Custom retention & residency, Private cloud / on-premises, API access (REST & webhooks), Dedicated account manager & SLA

Use cases

• Understanding any PLC program, legacy or modern, documented or not
• Rapid line troubleshooting by turning code into plain-language insights
• Generating specific PLC code while maintaining logic, dependencies, and standards
• Getting a full line picture and understanding multiple connected PLCs
• Preserving institutional knowledge of PLC operations
• Enabling plant managers to understand plant operations without relying on specific individuals
• Reviewing and validating contractor changes before implementation
• Analyzing and solving problems related to PLC programs
• Making and testing code changes with full context-aware generation
• Reasoning across multiple PLCs, vendors, and layers of context on a production line
• Detecting waiting times and cycle-time bottlenecks in PLC ladder logic
• Reducing production downtime and pressure on engineering teams
• Reducing Mean Time To Recovery (MTTR) with immediate AI root cause analysis
• Standardizing code across different lines and plants
• Extracting components, dependencies, alarms, and process sequences from PLC code
• Integrating with existing version control systems for PLC projects
• Interpreting PLC code from custom tools via API
• Generating or modifying PLC code via API
• Troubleshooting via stateful conversation threads through API
• Analyzing PLC projects asynchronously via API
• Reading live tag values and recent history via API
• Exporting vendor PLC files or PDF reports via API
• Ingesting L5X / Siemens exports via API
• Saving new versions from updated vendor files via API

AI approach

PLCs.ai provides an AI purpose-built for industrial automation to understand, troubleshoot, and generate PLC code. It turns complex PLC code into plain English, offers instant troubleshooting, specific code generation, and 3D line context. The AI agents analyze PLC code, components, dependencies, layout, and sequences, and can perform cross-PLC reasoning across different vendors. Data is isolated per customer and never used to train the AI.

Tech named: AI agents

Industries served

• Industrial automation
• Manufacturing

What it says sets it apart

• First AI purpose-built for industrial automation
• Turns complex PLC code into plain English for anyone to understand
• Data isolated per customer and never used to train AI
• Supports major PLC platforms like Siemens TIA Portal and Rockwell Studio 5000
• Addresses institutional knowledge loss by making PLC understanding accessible
• Offers both 'Explain' (no code change) and 'Generate' (with code change) modes
• Provides unified context and cross-PLC reasoning for entire production lines
• Includes line-specific skills for industrial automation tasks
• Seamless integration with existing version control systems (GitHub, GitLab, Bitbucket, Copia, octoplant)
• Unlimited users/collaborators with pricing based on controllers, not seats
• Volume tier pricing that automatically steps down as projects grow
• Comprehensive API for integration with custom tools

Funding rounds we track

From the AI funding tracker — rounds as reported by the linked publications.