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Modbus Sniffer Software

Modbus RTU Sniffer (aka Serial Port Monitor) is a powerful tool serving as an optimal solution for analyzing data transferred within Modbus communications. Thanks to Modbus Sniffer’s outstanding functionality, you can easily detect and resolve any problem you may face when providing Modbus testing and debugging. The distinctive advantage of the software is its ability to display and log all the data transmitted through COM ports available in your system.

With the advanced search and filter options, offered by this efficient Modbus Sniffer software, only relevant serial data will be shown to you. Another great feature is a built-in terminal used for executing text commands. Modbus Monitor is an easy-to-use app that supports different formats for exporting data and provides you with numerous significant options.

The software can be purchased as a Standard, Professional or Company Edition.

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Modbus Sniffer Software Integration

Whether you're looking at embedded Modbus RTU Monitor solution as a part of your product you can consider Serial Port Monitor ActiveX as a component for implementation.

Find out more about SMP AX

Here are the key Modbus Protocol Sniffer capabilities:

Modbus' data analyzing

The moment the app connects to the required COM port, it starts analyzing serial data transferred through it. By monitoring serial ports in real time, you can track down emerging issues and react immediately. Even when a COM port is used by another application, you’ll still have no problem connecting to it with the software.

All data, collected by Modbus RTU Sniffer, can be viewed in different modes, which greatly simplifies the process of data comparison and evaluation.
Simultaneous monitoring of multiple ports

Modbus Sniffer is capable of recording data from several COM ports within the same monitoring session. That means, you can see several applications communicating with different devices through several serial ports simultaneously. Using the first in, first out method for data logging, the software makes it easy to analyze monitored communications.
Displaying data in different modes

Captured data can be displayed in different visualizations. The software offers Line, Table, Dump, and Terminal views. Each visualization provides its own benefits, so, depending on your needs, you are able to choose whether to watch the data as recorded IRPs, displayed in a table, ASCII characters, or a plain text, displayed in lines.
Emulation of data transfer

If you want to test the reaction of a particular device to a specific command, Modbus Sniffer will help you do this by simulating sending data to the required device from the monitored COM port the device is connected to. The software supports binary, octal, decimal, hexadecimal, and mixed data formats.
Comparing Modbus communication sessions

It’s a really good idea to compare monitoring sessions if you need to get more accurate results within Modbus communication being analyzed. Once you receive Modbus data from your application, the software enables you to emulate its transfer to the serial port again. This way, you can see all differences between sessions and compare the data received.

Modbus Sniffer Software Full Features List

	Ability to start and stop tracking a COM port used by other applications (PRO and Company versions);
	Full compatibility with Windows 10 (both x32 and x64);
	Monitoring several COM ports at a time;
	Adding multiple ports to one monitoring session;
	Support for serial ports of all kinds: standard on-board ports, software-based virtual COM ports, USB-to-serial cradles, and more;
	Analyzing data in a real-time mode;
	The software as well as all its drivers are digitally signed;
	Visualizing captured data in different views: Table, Line, Dump, and Terminal;
	Logging both sent and received data flows;
	Ability to transfer a file in the size defined by a user or divide it into separate files;
	Exporting raw data to a file (the Terminal view);
	Displaying commands in multiple colors (the Table view);
	Monitoring software and hardware that communicates with a COM port;
	Catching all serial input and output control codes (IOCTLs), tracking their complete parameters;
	Ability to customize logging of monitoring sessions (support of several timestamp formats, different scale of notation, customizable logging string length, and more);
	Saving all captured data to the clipboard;
	Support for full-duplex data transmission mode;
	Visualization of the control lines status;
	Providing advanced data filtering tools with presets;
	Support of all baud rates;
	Clean and friendly interface: designed for a regular user with no programming skills;
	Ability to add comments (the Table view) ;
	Flexible configuration options: stopbits, flow control, parity control, data bits, highlighting, etc.
	Creating a new redirection file while monitoring is not active;
	Filtering serial data according to ports;
	Displaying both actual data written to the port and data that an application tried to write;
	Ability to disable the automatic scroll (the Terminal view) ;
	Convenient options for managing monitoring sessions: saving and loading all monitored data, exporting and redirecting data to a file;
	Quick filters configuration in the toolbar;
	Providing statistics in the status bar from first to last highlighted IRP (the Table view). The IRPs in the Table view now have the transcript hints from the Line view;
	Exporting and automatically redirecting monitoring sessions to a file (HTML, ASCII text, UNICODE text, Exсel CSV).

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Compare STANDARD and PRO/Company versions

#	Feature	Standard	Pro/Company
1	Monitoring serial ports which are already in use
2	Sending/receiving data to/from any COM port (Advanced Send Dialog)
3	The possibility to change COM port parameters from Advanced Send Dialog
4	Any serial port software/hardware can be analyzed
5	Monitor any number of serial ports at once
6	Supports all COM-port types
7	Intercepts all data read from/written to COM port
8	Built-in search
9	4 types of customizable monitoring visualizers for viewing and logging data
10	Incoming and outgoing data streams logging
11	Tracing all serial input/output control codes
12	Copying all recorded data to clipboard
13	Saving, loading and exporting all monitored data
14	Full duplex mode
15	Unique stream filtering tools with presets

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What customers say

- Jon Kinne
- 4.8
Without the Serial Port Monitor from Electronic Team, I would not have been able to easily and quickly see the operation of the several serial ports carrying data to the navigation program...
Jon Kinne
- Florin Vancea, a freelance software developer
- 4.8
With Serial Port Monitor by Electronic Team, Inc. I have easily managed to develop a useful tool for logging and debugging and even embedded it into my own software.
- Oct 14, 2024
Florin Vancea, a freelance software developer
- David Coward
- 4.8
Serial Port Monitor allowed the analysis which would be impossible any other way. I was using your product to investigate the protocol which PC software uses to communicate with a mobile phone so I could get my SMS control device to do the same thing.
- Oct 14, 2024
David Coward