OpenOPC-PyModbus-Snap7-MQTT

Industrial automation toolkit for OPC, Modbus, MQTT, BACnet, IEC104, and DNP3 protocols with Python-based tools, GUI applications, and training simulators.

Library and Software Used

• OpenOPC (pip install OpenOPC-Python3x)
• opcua (pip install opcua)
• PyModbus (pip install pymodbus)
• pyModbusTCP (pip install pyModbusTCP)
• modbus-tk (pip install modbus_tk)
• GrayBox OPC-DA Automation Wrapper(DLL) : Download
• Register GrayBox OPC-DA Automation Wrapper(DLL) : (regsvr32 gbda_aut.dll)
• Python Version 3.6.8(32-Bit)
• PyWin32 for Python 3.6.8(32-Bit) : Download
• Matrikon OPC-DA Server for Simulation : Download
• Matrikon OPC Explorer : Download
• Download diagslave Modbus Simulator : Download
• Download Virtual Serial Port Driver Software : Download

Repository Structure

├── Protocols/                          # Protocol-specific examples and references
│   ├── MODBUS/
│   ├── MQTT/
│   └── OPC/
├── Projects/                           # Platform-based solutions
│   ├── Grafana/
│   ├── JavaScript/                     # JavaScript solutions
│   │   ├── BACnet/
│   │   ├── Modbus/
│   │   ├── MQTT/
│   │   ├── OPC-DA/
│   │   ├── OPC-UA/
│   │   │   └── js-modbus/              # JavaScript Modbus example
│   ├── Node-RED/                       # Node-RED flows organized by protocol
│   │   ├── BACnet/                     # Node-RED + BACnet (Public, Private)
│   │   ├── Modbus/                     # Node-RED + Modbus (Public, Private)
│   │   ├── MQTT/                       # Node-RED + MQTT (Public)
│   │   └── OPC-UA/                     # Node-RED + OPC-UA (Public, Private)
│   ├── Python/                         # Python solutions and application projects
│   │   ├── BACnet/                     # BACnet clients, simulators and loggers
│   │   ├── IEC-104/
│   │   ├── Modbus/
│   │   ├── MQTT/                       # MQTT clients, publishers and loggers
│   │   ├── OPC-DA/
│   │   ├── OPC-UA/                     # OPC-UA clients, servers and bridges
│   │   └── Applications/               # Standalone Python application projects
│   └── Telegraf/                       # Telegraf work grouped by protocol
│       ├── Modbus/
│       └── OPC-UA/
│   # Platform folders use Modbus, OPC-UA, OPC-DA, MQTT and BACnet where applicable
├── Training Simulators/                # Simulator software for student training
│   ├── BACnet/
│   ├── DNP3/
│   ├── IEC-104/
│   ├── Modbus/
│   ├── MQTT/
│   ├── OPC-DA/
│   ├── OPC-UA/
│   └── Remote Access/
├── Tools/                              # Supporting utilities
│   ├── KEPServerEX V6.6.350 Tutorial Project Backup/
│   └── pywin32/                        # pywin32 library resources
├── .github/                            # GitHub issue templates
├── LICENSE
├── CONTRIBUTING.md
├── requirements.txt
└── README.md

Student Simulator Downloads

Simulator	Location
DNP3 Client/Server	Training Simulators/DNP3/
IEC104 Client/Server	Training Simulators/IEC-104/
Modbus	Training Simulators/Modbus/
MQTT	Training Simulators/MQTT/
OPC-DA Server	Training Simulators/OPC-DA/
OPC-UA Client (UaExpert)	Training Simulators/OPC-UA/
Remote Access	Training Simulators/Remote Access/

Getting Started

1. Install dependencies: pip install -r requirements.txt
2. Navigate to the relevant Protocols/ or Projects/ directory for your use case
3. Follow the Jupyter notebooks (.ipynb) or Python scripts in each subdirectory

Contributing

See CONTRIBUTING.md for guidelines.

License

See LICENSE.