TiaCommander — MCP Server for Siemens TIA Portal

Version	3.15.2
Protocol	MCP 2024-11-05 (stdio)
Runtime	.NET Framework 4.8
TIA Portal	V17 – V20 (Openness API, tested on V19)
License	Proprietary (free beta)

New in this release: live PLC data — read data blocks, tag tables, watch tables and CPU diagnostics live from the running controller; several AI clients served at once from one machine, with optional direct HTTP clients on the local listener; and multi-Portal support — pick which installed TIA Portal (V17–V20) to run on a machine with several installed.

*V17 through V20 are supported for project work. V16 and older are detected and refused with a clear message. Only V19 is fully tested; the others are expected to work as TIA Portal maintains backward-compatible Openness APIs across versions.

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Overview

TiaCommander is an MCP server that connects AI assistants to Siemens TIA Portal via the Openness API. It enables AI-assisted PLC programming, project management, library operations, hardware configuration, cross-reference analysis, and deployment — all through natural language.

Tested AI clients: Claude Desktop, Claude Code, VS Code (Copilot), Cursor, Windsurf, Codex CLI, Gemini CLI.

18 tools, 205 actions covering the full TIA Portal project lifecycle.

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What's in the download?

TiaCommander-v3.15.2-portable/
├── bridge/                              ← Live PLC data helper (S7CommPlus / TLS)
│   ├── libcrypto-3-x64.dll
│   ├── libssl-3-x64.dll
│   ├── S7CommPlusDriver.dll
│   ├── TiaCommander.S7Bridge.exe
│   ├── TiaCommander.S7Classic.dll
│   └── zlib.net.dll
├── data/
│   └── exports/                         ← Export output folders
│       ├── alarm_text/
│       ├── hardware/
│       ├── tag/
│       └── watch/
├── docs/
│   ├── configs/
│   │   ├── claude_code.txt
│   │   ├── claude_desktop_config.json
│   │   ├── codex_cli_config.toml
│   │   ├── cursor_mcp.json
│   │   ├── gemini_cli_settings.json
│   │   ├── generic_stdio.json
│   │   ├── vscode_copilot_mcp.json
│   │   └── windsurf_mcp_config.json
│   ├── 1-QUICKSTART.md
│   ├── KNOWN_LIMITATIONS.md
│   ├── LICENSE.txt
│   ├── README.md
│   └── THIRD-PARTY.md
├── help/
│   ├── github-offline.html
│   └── readme-offline.html
├── licenses/                            ← Full third-party licence texts
│   ├── Apache-2.0.txt
│   ├── BSD-3-Clause.txt
│   ├── GPL-3.0.txt
│   ├── LGPL-3.0.txt
│   ├── Microsoft-WebView2-SDK.txt
│   ├── MIT.txt
│   └── Polyform-Noncommercial-1.0.0.txt
├── Resources/
│   ├── logoBlack.png
│   └── tiacommander.png
├── runtimes/                            ← WebView2 native loaders
│   ├── win-x64/native/WebView2Loader.dll
│   ├── win-x86/native/WebView2Loader.dll
│   └── win-arm64/native/WebView2Loader.dll
├── Templates/                           ← Block XML, alarm & diagnostics templates
│   ├── diagnostics/
│   │   ├── TC_Diag_1200.xml
│   │   └── TC_DiagOB.xml
│   ├── Fb.xml
│   ├── Fc.xml
│   ├── GlobalDb.xml
│   ├── Ob.xml
│   ├── Ob_FBD.xml
│   ├── Ob_LAD.xml
│   ├── Ob_SCL.xml
│   └── TextListTemplate.xlsx
├── x64/                                 ← SQLite native library (64-bit)
│   └── SQLite.Interop.dll
├── x86/                                 ← SQLite native library (32-bit)
│   └── SQLite.Interop.dll
├── CHANGELOG.md
├── EPPlus.dll
├── EPPlus.Interfaces.dll
├── icon.png
├── manifest.json
├── Microsoft.Bcl.AsyncInterfaces.dll
├── Microsoft.IO.RecyclableMemoryStream.dll
├── Microsoft.Web.WebView2.Core.dll
├── Microsoft.Web.WebView2.WinForms.dll
├── System.Buffers.dll
├── System.ComponentModel.Annotations.dll
├── System.Data.SQLite.dll
├── System.IO.Pipelines.dll
├── System.Memory.dll
├── System.Numerics.Vectors.dll
├── System.Runtime.CompilerServices.Unsafe.dll
├── System.Security.Cryptography.Xml.dll
├── System.Text.Encodings.Web.dll
├── System.Text.Json.dll
├── System.Threading.Tasks.Extensions.dll
├── THIRD-PARTY-NOTICES.md
├── TiaC