T-IA Connect
A Model Context Protocol (MCP) bridge to programmatically control Siemens TIA Portal (PLC, blocks, tags, and HMI).
Documentation
TIA Portal V17-V21 Supported
Automate TIA Portal engineering from API to validation.
T-IA Connect is a complete engineering automation platform for Siemens TIA Portal: REST API, MCP, Workplan-guided execution, PLCSIM, Test Harness, VCS, docs/RAG and reports.
Buy T-IA ConnectView API Docs
316+
API Endpoints
393+
MCP Tools
V17-V21
TIA Compatible
100%
On-Premise
Precision for Every Role
A controllable engineering workflow for automation teams, not just a chat assistant.
Commissioning
Rapidly debug and generate test blocks on-site without manual SCL coding.
FeaturesFAT/SAT Report
System Integrator
Standardize libraries across multiple projects using AI-assisted mass configuration.
Pattern LibraryCI/CD PipelineSource Control
Maintenance
AI-powered diagnostic reports and legacy code explanation for rapid recovery.
PLCSim AdvancedSource Control
PLC Instructor
Generate learning modules and simulation scenarios in seconds for students.
Classroom
TIA Portal Engineering Automation Platform
T-IA Connect wraps Siemens TIA Portal in a controllable automation layer for API calls, AI-assisted execution, simulation, tests, documentation and integration workflows.
REST API & Openness Automation
Drive project creation, blocks, tags, hardware, compilation and reports through a documented HTTP/JSON API over TIA Portal Openness.
MCP, Docs/RAG & Workplan
Connect Claude, ChatGPT, Cursor or local models to real project context, then guide actions through a structured Workplan instead of free-form chat.
PLCSIM, Test Harness & VCS
Close the loop with simulation, automated PLC tests, source control, CI/CD workflows and engineering evidence you can review.
API Protection
Token authentication and locking of critical routes (Write/Delete).
Native WebSockets
Real-time feedback via SignalR for tracking long-running TIA tasks.
Signed Code
Certified binaries and PowerShell scripts to ensure toolchain integrity.
TIA Monitoring
Proactive monitoring of Siemens process state and memory.
Workplan Orchestration
Plan, sequence and audit multi-step engineering actions before they touch TIA Portal.
Service Mode
Designed to run headless as a background task on your Windows engineering servers.
Beyond chat:
a controllable chain.
01
Expose TIA Portal safely
Run the local T-IA Connect bridge and access projects through REST API and MCP instead of manual UI-only operations.
02
Build a Workplan
Use AI and project context to prepare sequenced actions: create, modify, compile, simulate, test, document and report.
03
Execute, verify, commit
Run the approved plan through API actions, PLCSIM/Test Harness checks and VCS-friendly outputs.
>_
MotorControl.scl
01FUNCTION_BLOCK "FB_MotorControl"
02VAR_INPUT
03 Start_Command : BOOL;
04 Stop_Command : BOOL;
05 Safety_Healthy : BOOL;
06END_VAR
07// AI Generated Logic Layer
08#Motor_Run := (#Start_Command OR #Motor_Run) AND #Stop_Command AND #Safety_Healthy;
Workplan: compile, PLCSIM check and report ready for review.
Model Context Protocol (MCP)
Copilot plus
Engineering Workflow
The MCP layer connects TIA Portal to Gemini, Claude, ChatGPT, Cursor or Ollama, but the product value is the workflow around it: project context, Workplan, API execution, PLCSIM checks and reviewable outputs.
TIA Co-Pilot
Connected to TIA V21
Gemini 1.5 Pro
Create a Function Block (SCL) to control a conveyor belt. Use the UDT "Motor_Drive" we defined in the library.
Reading project context (Library/Types/Motor_Drive)...
I've analyzed the Motor_Drive UDT. Here is the SCL code for FB_Conveyor_Control:
FB_Conveyor_Control.sclSCL
FUNCTION_BLOCK "FB_Conveyor_Control" VAR_INPUT Enable : Bool; Reset : Bool; Drive_Ref : "Motor_Drive"; END_VAR
BEGIN #Drive_Ref.ControlWord.%X0 := #Enable;
IF #Reset THEN #Drive_Ref.ControlWord := 16#0480; END_IF;
// Ramp Generator IF #Enable AND #Drive_Ref.StatusWord.%X2 THEN #Drive_Ref.SpeedSetpoint := 1500.0; END_IF; END_FUNCTION_BLOCK
Add to WorkplanCopy Code
From prompt to controlled execution.
Not just generic code snippets.
A standard AI chat can propose text. T-IA Connect exposes real TIA Portal project context through MCP, then channels changes through API actions, Workplan steps, simulation, tests, reports and source control.
Explore AI workflows
Bring Your Own Model
Compatible with Gemini Pro, Claude 3.5 Sonnet, or run offline with Ollama (Llama 3, Mistral).
Workplan-Guided Execution
Turn AI suggestions into sequenced engineering steps that can be reviewed, executed, tested and traced.
Local and BYOK Execution
Keep your IP under control. Use your own AI key or local LLMs via Ollama and run the TIA Portal automation layer locally.
Compatible with Your Models
ChatGPTClaudeGemini
Ollama
Self-Hosted
Trusted by automation professionals
See what our users and automation experts have to say.
“希望能够提供中国区域支付宝微信购买链接”
W
wang mingming
siemens
“I begin to test t-ia connect with m'y trial app and i liké it too much, it help you to make any thing to the Tia projects with simple click. ”
A
Ayoub EL RHOUATE
Automation Expert
“. Giá trị mới chỉ đang ở trạng thái "Prepared" (Chuẩn bị) Trong bảng khai báo biến (phần Expression phía trên), bạn sẽ thấy: Cột Value của start vẫn là FALSE. Cột Prepared Value của start mới là TRUE (hiển thị màu xanh dương). Giải thích: Trong CODESYS, khi bạn nhập giá trị mới lúc đang Online, nó chưa được ghi vào bộ nhớ ngay mà chỉ nằm ở danh sách "chờ". Cách xử lý: Sau khi PLC đã ở chế độ RUN, bạn cần nhấn Ctrl + F7 (Write Values) để nạp giá trị TRUE từ cột "Prepared Value" vào cột "Value" thực tế.”
A
AUTOMATIONS TUAN Y
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