TIATool
The self-extending, verify-first AI toolkit for Siemens TIA Portal. Connect Claude, Cursor, VS Code or Claude Code to Siemens TIA Portal. 75 MCP tools, an offline project cache, and a backup and verify gate on every AI change.
It reads the whole project offline, backs it up before every write and checks each change against your baseline. When no tool fits, it scripts Openness itself.
Powerful features for
modern users
Everything you need to stay productive and connected, designed with simplicity and efficiency in mind.
75 MCP tools
75 MCP tools, plus C# scripts against the Openness API. Works with Claude Desktop, Claude Code, Cursor and VS Code, or any other MCP client.
Offline project cache
Exports are scanned into a local cache. Who writes a tag, the call graph, search and diff answer with TIA Portal closed.
Backup before every write
Every write takes a new timestamped backup. Older backups are never overwritten.
Verify gate
After a change: only the intended blocks changed, interfaces and retain flags intact, scan shape unchanged.
TIA Portal V19 and V21
TIA Portal V19 and V21 with Openness.
Scripts Openness when no tool fits
It reads the Openness object model, writes a short C# script, and keeps what worked as an extension. A write script goes through the same backup and verify gate as every built-in tool.
No telemetry
No usage data, crash reports or tool logs leave the PC. The license check carries no project data.