Serial Port Monitor is a professional and powerful system utility for monitoring RS232/RS422/RS485 ports. The COM monitor displays, records, and analyzes all serial port activity in the system. This is an ideal method for tracking potential issues that may arise during application or driver development, serial device testing, and optimization processes.

This product also offers advanced filtering and search functions, professional built-in terminals and data output options, and key advantages of user-friendly and flexible interface. This is a complete software solution, you don't need any additional hardware to use it.

Serial Port Monitor can be purchased as the Standard Professional or Corporate Edition.

Using Serial Port Monitor, you can

Official user manual:https://www.eltima.com/wiki/user-guides/spm-user-guides.html

Analyze serial port activity

The serial monitor can even connect to a COM port that has been opened by any application to start sniffing it. All data that passes through the monitoring port will be displayed in various views in our monitoring tool. The table view packet function transcribes script prompts from the row view. Everything is captured in real-time, so you can immediately investigate the issue. The synchronous highlighting of similar IRP in different views is particularly convenient for comparison.

In addition, you can redirect all monitoring data to a specified file, or you can copy all recorded data to the clipboard. The COM port monitor enables you to intercept and record all serial input/output control codes (FHIR s), and track all their details and parameters. You can save any monitoring session and load it the next time you need it.

Monitor several ports in a session

This software has a unique feature of simultaneously monitoring multiple COM ports. Now, you can collect data on how an application interacts with two or more ports and a small number of devices simultaneously in a session. The data received and sent during the monitoring process will be displayed (recorded) in a log according to the first in, first out principle; This makes analysis more convenient.

Read captured data in different ways

You can view data in all four monitoring views simultaneously: table, row, dump, or terminal mode. The dump view can display binary, ASCII data, and port settings. COM monitor allows you to choose monitoring filters, saving you time and allowing you to only track events of interest. You can also apply capture options during the ongoing monitoring process.

Send simulation data to serial devices

You can use various formats (string, binary, octal, decimal, hexadecimal, mixed) to send data to the monitored serial port, just like using the terminal mode feature of a serial monitor to send data on behalf of the monitored application. This allows tracking of the reactions of the monitored serial devices to certain special commands and data.

Fully supports Modbus RTU and Modbus ASCII protocols

The COM port monitor will facilitate the use of new efficient filters to read and analyze Modbus data. With our serial monitoring software, you can easily establish a connection with RS485/RS422/RS232 devices and analyze their data.

Play and conversation comparison

The serial port monitor provides a unique possibility for session playback - you can resend the data received from the application to the serial port. Through this method, you can view the behavior of ports when receiving the same data to obtain more accurate monitoring results. You can also compare conversations by automatically displaying the differences between them.

Serial Port Monitor Complete Feature List

1. Start/Stop Monitoring Serial Ports Opened by Other Applications (Professional/Company Edition Only)
2. Fully compatible with Windows 10 (including x32 and x64)
3. The serial port monitor and all its internal drivers have been digitally signed
4. Can monitor any number of serial ports simultaneously
5. Multiple monitoring ports can be added in one session
6. Supports all types of COM ports: standard onboard ports, expansion board ports, software based virtual COM ports, Bluetooth serial ports, USB to Serial cradle, etc
7. Data transmission monitoring and recording
8. Advanced Send dialog box: Easily send various types of data, apply aliases to speed up input and automation, send files and loop functions and commands, real-time change of serial port parameters (Professional/Corporate only)
9. Real time data capture
10. Various monitoring visualization tools: table view, line view, dump view, terminal view
11. Incoming and outgoing data stream logging
12. The redirected files can be divided into a bunch of files or limited to user-defined sizes
13. Original data can be exported to a file in the terminal view
14. Display commands of multiple colors in a table format
15. Any software/hardware that works with the serial port can be monitored
16. Capture and record all serial input/output control codes (FHIR s), track all their details and parameters
17. Customizable monitoring session logging (multiple timestamp formats, different notation tables, customizable logging string length, etc.)
18. Convenient and flexible monitoring session management: Save and load all monitoring data, export and redirect to file functionality
19. Monitoring session export (HTML, ASCII text, Unicode text, Ex с elCSV) and automatic redirection to files (serial end)
20. The monitor will automatically attach all monitoring data to the file in real-time
21. Support copying all recorded data to the clipboard
22. Support automatic addition of data before and after packet transmission
23. Supports full duplex mode
24. Visualization of control line status
25. Unique flow filtering tool with preset settings
26. Supports all baud rates
27. Flexible configuration: stop bit, flow control, parity control, data bit, highlighting, etc.
28. User friendly and flexible interface: This software is designed to provide convenient serial port access without the need for programming skills
29. Annotation section in table view
30. Quickly filter custom filters in the toolbar
31. When monitoring is inactive, a new data redirection file can be created
32. The statistical information in the status bar highlights IRP from the first to the last in the Table view. The IRP in the Table view now has transcription prompts from the Line view
33. Filter data by port
34. The data that the application attempts to write to the port not only displays the actual written data, but also shows
35. The automatic scrolling of the terminal view can be disabled
36. You can use new command-line options to continue writing existing data in the file without overwriting the existing data