Discover Modbus Viewer, a powerful and user-friendly application designed for engineers, technicians and enthusiasts working with the Modbus protocol. Our program allows you to easily connect to Modbus TCP and RTU devices, read registers and quickly diagnose problems.

Key features:

Universal support: Works with Modbus TCP (via Wi-Fi/Ethernet), Modbus RTU (via RS-485, USB and Bluetooth SPP adapters) and supports Modbus RTU over TCP.
Intuitive interface: Create and save configurations of your projects for quick access.
Real-time monitoring: View register and bit values in real time with the ability to record data.
Trends and Export: Activate graphical display of data for dynamic analysis. Export function allows you to save all trend and log data to a CSV file.
Full Control: Read and write Holding Registers, Input Registers, Coils and Discrete Inputs.
Data Handling: Supports 32 and 64 bit, Signed, Float and Multiplier settings.
Display Formats: View values in DEC, HEX and BIN.
Configurable Parameters: Adjust polling time, timeouts and other connection parameters.

Built-in HMI Dashboard Panel:
Visualize your data using convenient and functional information tiles:

Create personalized dashboards for quick monitoring of key parameters;

Full configuration for each tile: set custom variable names, units of measurement (e.g., °C, Bar, kW), and rounding rules;

Flexible interface adaptation: choose the number of tiles per row and adjust text size to ensure a perfect display on any device.

Built-in Modbus RTU Sniffer & Detailed Inspector:
Perform professional network diagnostics at a new level:

Intercept and analyze data exchange between Master and Slave devices in real time;

Detailed HEX Log Inspector: Get an instant breakdown of every packet. The app automatically converts raw HEX data into a clear table with register numbers and their current values;

Create Dashboard elements for all register types (Coil, DI, IR, HR) directly from the sniffed data;

Supports 32 and 64 bit bit depth, working with signed numbers (Signed), Float and setting multipliers;

Displaying values in DEC, HEX and BIN formats.

Built-in Modbus Server TCP:
The application includes a powerful Modbus Server TCP with the ability to configure registers and their attributes. It supports various data representations (Hex, Bin, 32/64-bit and Float). The virtual server allows you to connect up to 5 clients (slave devices) to it for testing and emulation.

💬 Support and Community:
Have questions, need help with configuration, or have ideas for new features? Join our Telegram chat to connect with the developer and other engineers:
https://t.me/ModbusViewer_Chat

Technical compatibility:
Optimized for PLC, SCADA and HMI systems. Supports various USB adapters (USB-to-RS485/Serial) and converters for direct Modbus RTU connection.

Download Modbus Viewer today and get full control over your Modbus devices with professional tools right in your pocket!