Modern Modbus TCP/IP Monitoring Made Simple
Free Professional Modbus TCP/IP scanner and monitoring tool for industrial automation engineers. Discover devices, monitor in real-time, and analyze data—all in one intuitive application.
By Crabby - Made for Windows
Unlimited Devices
Lightning Speed
Modbus Monitoring Features
Powerful features designed for industrial automation professionals
Smart Device Discovery
Automatically scan your network and discover Modbus devices using industry-standard protocols. Get detailed device information instantly.
- Scan device IDs 1-247
- Configurable timeouts (1-10000ms)
- Extract vendor & product info
Real-Time Monitoring
Monitor multiple devices simultaneously with configurable polling intervals. Track changes in real-time with visual highlighting.
- Multi-session monitoring
- 100ms to 60s polling intervals
- Pause/resume sessions
File Logging Service
Automatically log register data to files with multiple formats. Perfect for long-term data collection and compliance.
- CSV, JSON, Tab-Delimited formats
- Configurable log rotation policies
- Multiple concurrent loggers
Per-Register Configuration
Advanced per-register settings with scaling, custom units, and multiple data formats for specialized measurements.
- Linear scaling with offset
- 30+ unit presets + custom units
- 8 data format types (Float32, Int32, etc.)
Protocol Logging
Inspect raw Modbus traffic with TX/RX logging. Perfect for debugging and analysis.
- Raw byte inspection
- Hex display with timestamps
- Error tracking
High Performance
Built with Rust for blazing-fast performance and minimal resource usage.
- Rust backend for speed
- Low memory footprint
- Responsive UI
How Modbus Connect Works
Get started in minutes with our intuitive workflow
Discover Devices
Run the device scanner to automatically find all Modbus devices on your network. Add them to your device list with custom names.
Start Monitoring
Select a device, configure register type and address range, then start monitoring. Track multiple devices simultaneously.
Analyze & Save
View real-time data, create charts, and save your workspace. Export data for documentation and reporting.
Modbus Connect Pricing
Get full access during development. Single license for production use.
Single License
Pricing TBD for v1.0 release
- All current features included
- Unlimited devices & sessions
- Windows 7/8/10/11 (64-bit) support
- Community support
Ready to Simplify Your Modbus Workflow?
Join automation professionals who are already using Modbus Connect
Download NowContact Modbus Connect Support
Have questions or feedback? I'd love to hear from you.
crabby@modbusconnect.com