TiaCommander — MCP Server for Siemens TIA Portal

MCP server that connects AI assistants to Siemens TIA Portal via the Openness API. 16 tools, 166 actions covering the full TIA Portal project lifecycle.

Capabilities

• Session management — connect to TIA Portal, open/create/archive projects
• Block operations — create, read, import, export, compile blocks (SCL, LAD, FBD, STL)
• Hardware configuration — browse devices, modules, addresses, export hardware maps
• Cross-references — find block usage, tag usage, address references across the project
• Tag & watch tables — read, create, modify PLC tags and watch tables
• Library operations — browse, copy, update project and global library types
• Online & diagnostics — go online, download to PLC, compare online/offline, read diagnostics

Requirements

• Windows with .NET Framework 4.8
• Siemens TIA Portal V15.1–V21 (tested on V19)

Tested AI Clients

Claude Desktop, Claude Code, VS Code (Copilot), Cursor, Windsurf, Codex CLI, Gemini CLI

Install

Extract the portable ZIP and add to your MCP client config:

{
  "mcpServers": {
    "tiacommander": {
      "command": "C:\\TiaCommander\\TiaCommander.exe"
    }
  }
}