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TIA MCP is a Windows Model Context Protocol server that lets an MCP client inspect and make recoverable changes to offline TIA Portal V21 projects, with simulation through PLCSIM Advanced V8.

Pre-1.0. Offline tooling is validated in CI; live TIA Portal and PLCSIM runtime qualification is incomplete. Use it only with offline projects, copies, scratch projects and simulators you own, never with production PLCs or plants.

Start here

Page	What it covers
Getting Started	Prerequisites, build, connecting an MCP client, the portable package
Architecture	Host, isolated Siemens workers and portable workflows
FAQ	Common questions about Siemens software, safety, support and licensing

Canonical documentation

Classic screen batching now has bounded native evidence from an owned RT Advanced fixture. Profile-wide, visual and runtime qualification remain open in the release matrix; see the native continuation and limits.

This wiki is an overview. Details, evidence and exact support claims live in the repository:

• Documentation index
• Current status and remaining work
• Engineering workflow: prepare → preview → checkpoint → apply → verify
• Contributing and security policy

Get help

• Questions: Discussions → Q&A
• Bugs and feature requests: Issues
• Security vulnerabilities: report privately