T-IA Connect (Siemens TIA Portal)
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About T-IA Connect (Siemens TIA Portal)
Industrial-grade MCP bridge for Siemens TIA Portal: Generate SCL, explore PLC structures, and automate engineering with AI (Claude, Cursor, LobeChat).
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"
]
}
}
}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
FAQ from T-IA Connect (Siemens TIA Portal)
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).
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.
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.
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.
Is there a free trial available?
Yes. A 14-day full-featured free trial is available for download at t-ia-connect.com.
Frequently asked questions
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`).
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.
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.
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.
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/).
Basic information
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