Modbus: Simply

Simply Modbus features an intuitive and user-friendly interface, making it accessible to users with varying levels of technical expertise. The software's layout is well-organized, with clear menus and toolbars. The user manual and documentation are comprehensive, providing detailed instructions and examples.

Its simple GUI is ideal for teaching Modbus protocol structure, addressing (0-based vs 1-based), function codes, and data encoding (endianness). simply modbus

| Feature | Simply Modbus | ModScan32 | QModMaster (Free) | CAS Modbus Scanner | |---------|--------------|-----------|-------------------|--------------------| | Price | $49–79 (per tool) | ~$200 | Free | $495+ | | RTU/ASCII | Yes | Yes | Yes | Yes | | TCP | Yes (separate tool) | Yes | Yes | Yes | | Slave simulation | Yes (separate tool) | No | Yes (partial) | Yes | | GUI Simplicity | Very high | Medium | Medium | Low (feature-rich) | | Scripting | No | No | No | Yes (Python) | | Data logging | Basic | Basic | None | Advanced | | Cross-platform | Windows only | Windows | Linux/Windows/macOS | Windows/Linux | Its simple GUI is ideal for teaching Modbus

Many Modbus devices allow configuration via holding registers. Simply Modbus Master provides a direct way to write configuration values without writing custom code. Simply Modbus is ideal for users who prioritize

Simply Modbus is ideal for users who prioritize ease of use and low cost over advanced automation or cross-platform support.

Testing a Modbus RTU temperature transmitter (address 1, baud 9600, 8N1, register 30001 = 0x03 holding register for °C).