S7_snap7_Stremer_n_Recorder/GEMINI.md

Project Overview

This project is a web-based application for monitoring and logging data from a Siemens S7 PLC. It consists of a Python backend and a React frontend.

Backend:

• Framework: Flask
• PLC Communication: python-snap7
• Data Processing: pandas, numpy
• Functionality:
  • Provides a REST API for interacting with the PLC.
  • Streams data from the PLC in real-time.
  • Logs data to CSV files with rotation and cleanup.
  • Manages PLC and application configurations.
  • Serves the React frontend.

Frontend:

• Framework: React
• Build Tool: Vite
• UI Library: Chakra UI
• Charting: Chart.js
• Internationalization: i18next
• Functionality:
  • Provides a user interface for configuring the PLC connection and data logging.
  • Displays real-time data from the PLC in charts.
  • Allows browsing and visualizing historical data.

Building and Running

1. Install Dependencies:

• Backend: pip install -r requirements.txt
• Frontend: cd frontend && npm install

2. Build the Frontend:

cd frontend && npm run build

3. Run the Application:

• Development:
  1. Start the backend: python main.py
  2. Start the frontend dev server: cd frontend && npm run dev
• Production (standalone executable):
  1. Build the frontend as described above.
  2. Clean previous builds: rmdir /s /q build dist
  3. Run PyInstaller: conda activate snap7v12; pyinstaller main.spec --clean

The production build will create a single executable file in the dist directory.

Development Conventions

• The backend follows a modular structure with a core directory containing the main application logic.
• The frontend is located in the frontend directory and follows standard React project conventions.
• Configuration is managed through JSON files in the config/data directory.
• The application uses a rotating logger system for the backend, with logs stored in the .logs directory.