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T-IA Connect (Siemens TIA Portal) MCP Server

@feelautom

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Developer Tools

License

MIT

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Author

feelautom

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Feel Autom

About T-IA Connect (Siemens TIA Portal) MCP Server

Industrial-grade MCP bridge for Siemens TIA Portal: Generate SCL, explore PLC structures, and automate engineering with AI (Claude, Cursor, LobeChat).

#mcp#tia-portal#siemens#plc#industrial-automation#scl#openness#ai#claude#cursor

T-IA Connect (Siemens TIA Portal) MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "siemens-tia-portal": {
      "command": "C:\\Program Files\\T-IA Connect\\TiaPortalApi.App.exe",
      "args": [
        "--mcp"
      ]
    }
  }
}

T-IA Connect (Siemens TIA Portal) MCP Server tools

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Overview

What is T-IA Connect (Siemens TIA Portal)?

T-IA Connect (Siemens TIA Portal) is a GenAI bridge that securely connects large language models to Siemens TIA Portal. It generates deterministic PLC logic (SCL/ISA-88) from natural language using Sovereign GenAI models, enabling engineers to create and compile PLC blocks via chat.

How to use T-IA Connect (Siemens TIA Portal)?

Install T-IA Connect from its website, then configure the MCP server in your AI assistant’s claude_desktop_config.json pointing to TiaPortalApi.App.exe with the --mcp flag. Alternatively, launch the core engine in headless mode (--headless) to use the REST API at http://localhost:9000/ for direct HTTP calls.

Key features of T-IA Connect (Siemens TIA Portal)

  • 120+ MCP tools for full TIA Portal orchestration
  • Deterministic SimaticML XML builder prevents AI hallucination
  • Sovereign AI integration with European-hosted models (Qwen3-Coder-30B)
  • Headless operation — no GUI or WPF window required
  • Supports TIA Portal versions V17 through V21
  • Compiles PLC blocks directly from chat in under 30 seconds

Use cases of T-IA Connect (Siemens TIA Portal)

  • Generate PLC blocks (FB, FC, OB) from natural language descriptions
  • Automate testing with PLCSim Advanced via chat commands
  • Browse and understand existing PLC project structure without manual navigation
  • Compile TIA Portal projects headlessly from CI/CD pipelines

Frequently asked questions

1

What are the prerequisites for using T-IA Connect (Siemens TIA Portal)?

You need T-IA Connect installed, Siemens TIA Portal V17, V18, V19, V20, or V21, and a TIA Portal project file (`.ap17` / `.ap18` / `.ap19` / `.ap20`).

2

How does T-IA Connect (Siemens TIA Portal) ensure deterministic PLC logic?

The AI reasoning step is followed by a deterministic C# engine that builds strict SimaticML XML, preventing AI hallucination. The core engine remains private and proprietary.

3

What AI models are used and where are they hosted?

The system uses Qwen3-Coder-30B-Instruct via OVHcloud AI Endpoints, ensuring sensitive PLC logic never leaves the European Union.

4

Can T-IA Connect (Siemens TIA Portal) be used without a graphical interface?

Yes. Headless mode launches a REST API on `http://localhost:9000/` without any GUI, allowing fully automated, script-based operation.

5

Is there a free trial available?

Yes. A 14-day full-featured free trial is available for download at [t-ia-connect.com](https://t-ia-connect.com/).

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